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792 lines
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<a href="#pub-types">Public Types</a> |
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<a href="#pub-static-attribs">Static Public Attributes</a> |
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<a href="classoperations__research_1_1MPSolverParameters-members.html">List of all members</a> </div>
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<div class="headertitle">
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<div class="title">MPSolverParameters</div> </div>
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<div class="contents">
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>This class stores parameter settings for LP and MIP solvers. </p>
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<p>Some parameters are marked as advanced: do not change their values unless you know what you are doing!</p>
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<p>For developers: how to add a new parameter:</p><ul>
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<li>Add the new Foo parameter in the DoubleParam or IntegerParam enum.</li>
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<li>If it is a categorical param, add a FooValues enum.</li>
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<li>Decide if the wrapper should define a default value for it: yes if it controls the properties of the solution (example: tolerances) or if it consistently improves performance, no otherwise. If yes, define kDefaultFoo.</li>
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<li>Add a foo_value_ member and, if no default value is defined, a foo_is_default_ member.</li>
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<li>Add code to handle Foo in <a class="el" href="classoperations__research_1_1Set.html">Set</a>...Param, Reset...Param, Get...Param, Reset and the constructor.</li>
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<li>In class <a class="el" href="classoperations__research_1_1MPSolverInterface.html">MPSolverInterface</a>, add a virtual method SetFoo, add it to SetCommonParameters or SetMIPParameters, and implement it for each solver. Sometimes, parameters need to be implemented differently, see for example the INCREMENTALITY implementation.</li>
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<li>Add a test in linear_solver_test.cc.</li>
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</ul>
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<p>TODO(user): store the parameter values in a protocol buffer instead. We need to figure out how to deal with the subtleties of the default values. </p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8h_source.html#l01358">1358</a> of file <a class="el" href="linear__solver_8h_source.html">linear_solver.h</a>.</p>
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</div><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
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Public Types</h2></td></tr>
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<tr class="memitem:a397e8c8da87415d5408e2dd5ec3e9932"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#a397e8c8da87415d5408e2dd5ec3e9932">DoubleParam</a> { <a class="el" href="classoperations__research_1_1MPSolverParameters.html#a397e8c8da87415d5408e2dd5ec3e9932af5546ac8a26f50d8798bf634598a7eba">RELATIVE_MIP_GAP</a> = 0,
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<a class="el" href="classoperations__research_1_1MPSolverParameters.html#a397e8c8da87415d5408e2dd5ec3e9932a8c7c9aed0dcd36fc9a9af2fab295caf3">PRIMAL_TOLERANCE</a> = 1,
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<a class="el" href="classoperations__research_1_1MPSolverParameters.html#a397e8c8da87415d5408e2dd5ec3e9932a184546f243ecb7d9be48659f8be82992">DUAL_TOLERANCE</a> = 2
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}</td></tr>
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<tr class="memdesc:a397e8c8da87415d5408e2dd5ec3e9932"><td class="mdescLeft"> </td><td class="mdescRight">Enumeration of parameters that take continuous values. <a href="classoperations__research_1_1MPSolverParameters.html#a397e8c8da87415d5408e2dd5ec3e9932">More...</a><br /></td></tr>
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<tr class="separator:a397e8c8da87415d5408e2dd5ec3e9932"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a7319655592ea63d50ef2a6645e309784"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#a7319655592ea63d50ef2a6645e309784">IntegerParam</a> { <a class="el" href="classoperations__research_1_1MPSolverParameters.html#a7319655592ea63d50ef2a6645e309784a780328d13ea3b977de745d674da87403">PRESOLVE</a> = 1000,
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<a class="el" href="classoperations__research_1_1MPSolverParameters.html#a7319655592ea63d50ef2a6645e309784a420e8170e7ec327dd847b9610fc4565b">LP_ALGORITHM</a> = 1001,
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<a class="el" href="classoperations__research_1_1MPSolverParameters.html#a7319655592ea63d50ef2a6645e309784adabd0cf2fcb5726b7fc2aa3d54d5f3ff">INCREMENTALITY</a> = 1002,
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<a class="el" href="classoperations__research_1_1MPSolverParameters.html#a7319655592ea63d50ef2a6645e309784a4d52eb956c0c02b9cbc37720f27abbb0">SCALING</a> = 1003
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}</td></tr>
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<tr class="memdesc:a7319655592ea63d50ef2a6645e309784"><td class="mdescLeft"> </td><td class="mdescRight">Enumeration of parameters that take integer or categorical values. <a href="classoperations__research_1_1MPSolverParameters.html#a7319655592ea63d50ef2a6645e309784">More...</a><br /></td></tr>
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<tr class="separator:a7319655592ea63d50ef2a6645e309784"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ad01b184e1c49d8aabd15a268ff976ac8"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#ad01b184e1c49d8aabd15a268ff976ac8">PresolveValues</a> { <a class="el" href="classoperations__research_1_1MPSolverParameters.html#ad01b184e1c49d8aabd15a268ff976ac8a9d70aea1ff48f145644d82953fd4322a">PRESOLVE_OFF</a> = 0,
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<a class="el" href="classoperations__research_1_1MPSolverParameters.html#ad01b184e1c49d8aabd15a268ff976ac8a3b48e7f264e3228b1494312657fd611a">PRESOLVE_ON</a> = 1
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}</td></tr>
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<tr class="memdesc:ad01b184e1c49d8aabd15a268ff976ac8"><td class="mdescLeft"> </td><td class="mdescRight">For each categorical parameter, enumeration of possible values. <a href="classoperations__research_1_1MPSolverParameters.html#ad01b184e1c49d8aabd15a268ff976ac8">More...</a><br /></td></tr>
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<tr class="separator:ad01b184e1c49d8aabd15a268ff976ac8"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a79b59c0c868544afdaa05d89c8f8541f"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#a79b59c0c868544afdaa05d89c8f8541f">LpAlgorithmValues</a> { <a class="el" href="classoperations__research_1_1MPSolverParameters.html#a79b59c0c868544afdaa05d89c8f8541fa95aac881295562f873fc2ce46a8b8b1b">DUAL</a> = 10,
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<a class="el" href="classoperations__research_1_1MPSolverParameters.html#a79b59c0c868544afdaa05d89c8f8541fab6a6dd2cfc5b8fd6060e8a50573bb3ee">PRIMAL</a> = 11,
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<a class="el" href="classoperations__research_1_1MPSolverParameters.html#a79b59c0c868544afdaa05d89c8f8541faef10b8804992b6a16960332346c21493">BARRIER</a> = 12
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}</td></tr>
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<tr class="memdesc:a79b59c0c868544afdaa05d89c8f8541f"><td class="mdescLeft"> </td><td class="mdescRight">LP algorithm to use. <a href="classoperations__research_1_1MPSolverParameters.html#a79b59c0c868544afdaa05d89c8f8541f">More...</a><br /></td></tr>
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<tr class="separator:a79b59c0c868544afdaa05d89c8f8541f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a215b66c2ff063ffbf5b538ee402304cb"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#a215b66c2ff063ffbf5b538ee402304cb">IncrementalityValues</a> { <a class="el" href="classoperations__research_1_1MPSolverParameters.html#a215b66c2ff063ffbf5b538ee402304cba01f385fe2acfe85efe038aa62b31edfb">INCREMENTALITY_OFF</a> = 0,
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<a class="el" href="classoperations__research_1_1MPSolverParameters.html#a215b66c2ff063ffbf5b538ee402304cba34d17de87fc7339e07256ca5319dfa67">INCREMENTALITY_ON</a> = 1
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}</td></tr>
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<tr class="memdesc:a215b66c2ff063ffbf5b538ee402304cb"><td class="mdescLeft"> </td><td class="mdescRight">Advanced usage: Incrementality options. <a href="classoperations__research_1_1MPSolverParameters.html#a215b66c2ff063ffbf5b538ee402304cb">More...</a><br /></td></tr>
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<tr class="separator:a215b66c2ff063ffbf5b538ee402304cb"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a25a1112e410b183f49ef4ce8da1bdc74"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#a25a1112e410b183f49ef4ce8da1bdc74">ScalingValues</a> { <a class="el" href="classoperations__research_1_1MPSolverParameters.html#a25a1112e410b183f49ef4ce8da1bdc74ab3f9de74d2d20c2eebcec60b7273d485">SCALING_OFF</a> = 0,
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<a class="el" href="classoperations__research_1_1MPSolverParameters.html#a25a1112e410b183f49ef4ce8da1bdc74a62fd26c37f80b6aabec3b463c55a1c85">SCALING_ON</a> = 1
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}</td></tr>
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<tr class="memdesc:a25a1112e410b183f49ef4ce8da1bdc74"><td class="mdescLeft"> </td><td class="mdescRight">Advanced usage: Scaling options. <a href="classoperations__research_1_1MPSolverParameters.html#a25a1112e410b183f49ef4ce8da1bdc74">More...</a><br /></td></tr>
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<tr class="separator:a25a1112e410b183f49ef4ce8da1bdc74"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:aeeef6511f130ba8a9db2c308dbeada5c"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#aeeef6511f130ba8a9db2c308dbeada5c">MPSolverParameters</a> ()</td></tr>
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<tr class="memdesc:aeeef6511f130ba8a9db2c308dbeada5c"><td class="mdescLeft"> </td><td class="mdescRight">The constructor sets all parameters to their default value. <a href="classoperations__research_1_1MPSolverParameters.html#aeeef6511f130ba8a9db2c308dbeada5c">More...</a><br /></td></tr>
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<tr class="separator:aeeef6511f130ba8a9db2c308dbeada5c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a1816929ef3ed29e5884291472b1b8739"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#a1816929ef3ed29e5884291472b1b8739">SetDoubleParam</a> (<a class="el" href="classoperations__research_1_1MPSolverParameters.html#a397e8c8da87415d5408e2dd5ec3e9932">MPSolverParameters::DoubleParam</a> param, double <a class="el" href="matrix__utils_8cc.html#aee90379adb0307effb138f4871edbc5c">value</a>)</td></tr>
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<tr class="memdesc:a1816929ef3ed29e5884291472b1b8739"><td class="mdescLeft"> </td><td class="mdescRight">Sets a double parameter to a specific value. <a href="classoperations__research_1_1MPSolverParameters.html#a1816929ef3ed29e5884291472b1b8739">More...</a><br /></td></tr>
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<tr class="separator:a1816929ef3ed29e5884291472b1b8739"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ae189b253817210ee7e605b089ccf47e4"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#ae189b253817210ee7e605b089ccf47e4">SetIntegerParam</a> (<a class="el" href="classoperations__research_1_1MPSolverParameters.html#a7319655592ea63d50ef2a6645e309784">MPSolverParameters::IntegerParam</a> param, int <a class="el" href="matrix__utils_8cc.html#aee90379adb0307effb138f4871edbc5c">value</a>)</td></tr>
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<tr class="memdesc:ae189b253817210ee7e605b089ccf47e4"><td class="mdescLeft"> </td><td class="mdescRight">Sets a integer parameter to a specific value. <a href="classoperations__research_1_1MPSolverParameters.html#ae189b253817210ee7e605b089ccf47e4">More...</a><br /></td></tr>
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<tr class="separator:ae189b253817210ee7e605b089ccf47e4"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:af89ed33216d227599a7752bc0dc97ce3"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#af89ed33216d227599a7752bc0dc97ce3">ResetDoubleParam</a> (<a class="el" href="classoperations__research_1_1MPSolverParameters.html#a397e8c8da87415d5408e2dd5ec3e9932">MPSolverParameters::DoubleParam</a> param)</td></tr>
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<tr class="memdesc:af89ed33216d227599a7752bc0dc97ce3"><td class="mdescLeft"> </td><td class="mdescRight">Sets a double parameter to its default value (default value defined in <a class="el" href="classoperations__research_1_1MPSolverParameters.html" title="This class stores parameter settings for LP and MIP solvers.">MPSolverParameters</a> if it exists, otherwise the default value defined in the underlying solver). <a href="classoperations__research_1_1MPSolverParameters.html#af89ed33216d227599a7752bc0dc97ce3">More...</a><br /></td></tr>
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<tr class="separator:af89ed33216d227599a7752bc0dc97ce3"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a09343ed6dde3059443fe6f4caa16e986"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#a09343ed6dde3059443fe6f4caa16e986">ResetIntegerParam</a> (<a class="el" href="classoperations__research_1_1MPSolverParameters.html#a7319655592ea63d50ef2a6645e309784">MPSolverParameters::IntegerParam</a> param)</td></tr>
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<tr class="memdesc:a09343ed6dde3059443fe6f4caa16e986"><td class="mdescLeft"> </td><td class="mdescRight">Sets an integer parameter to its default value (default value defined in <a class="el" href="classoperations__research_1_1MPSolverParameters.html" title="This class stores parameter settings for LP and MIP solvers.">MPSolverParameters</a> if it exists, otherwise the default value defined in the underlying solver). <a href="classoperations__research_1_1MPSolverParameters.html#a09343ed6dde3059443fe6f4caa16e986">More...</a><br /></td></tr>
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<tr class="separator:a09343ed6dde3059443fe6f4caa16e986"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a372de693ad40b3f42839c8ec6ac845f4"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#a372de693ad40b3f42839c8ec6ac845f4">Reset</a> ()</td></tr>
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<tr class="memdesc:a372de693ad40b3f42839c8ec6ac845f4"><td class="mdescLeft"> </td><td class="mdescRight">Sets all parameters to their default value. <a href="classoperations__research_1_1MPSolverParameters.html#a372de693ad40b3f42839c8ec6ac845f4">More...</a><br /></td></tr>
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<tr class="separator:a372de693ad40b3f42839c8ec6ac845f4"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a692014f815d7927760762b046675f658"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#a692014f815d7927760762b046675f658">GetDoubleParam</a> (<a class="el" href="classoperations__research_1_1MPSolverParameters.html#a397e8c8da87415d5408e2dd5ec3e9932">MPSolverParameters::DoubleParam</a> param) const</td></tr>
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<tr class="memdesc:a692014f815d7927760762b046675f658"><td class="mdescLeft"> </td><td class="mdescRight">Returns the value of a double parameter. <a href="classoperations__research_1_1MPSolverParameters.html#a692014f815d7927760762b046675f658">More...</a><br /></td></tr>
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<tr class="separator:a692014f815d7927760762b046675f658"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aeae0a6e1e84d015690573b08d62b1395"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#aeae0a6e1e84d015690573b08d62b1395">GetIntegerParam</a> (<a class="el" href="classoperations__research_1_1MPSolverParameters.html#a7319655592ea63d50ef2a6645e309784">MPSolverParameters::IntegerParam</a> param) const</td></tr>
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<tr class="memdesc:aeae0a6e1e84d015690573b08d62b1395"><td class="mdescLeft"> </td><td class="mdescRight">Returns the value of an integer parameter. <a href="classoperations__research_1_1MPSolverParameters.html#aeae0a6e1e84d015690573b08d62b1395">More...</a><br /></td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-attribs"></a>
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Static Public Attributes</h2></td></tr>
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<tr class="memitem:ae80ed8b6fcbcb848b18d657d62c26522"><td class="memItemLeft" align="right" valign="top">static const double </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#ae80ed8b6fcbcb848b18d657d62c26522">kDefaultDoubleParamValue</a> = -1.0</td></tr>
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<tr class="memitem:ad7c866ce738bfb6ac5fcee91fed998ed"><td class="memItemLeft" align="right" valign="top">static const int </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#ad7c866ce738bfb6ac5fcee91fed998ed">kDefaultIntegerParamValue</a> = -1</td></tr>
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<tr class="memitem:a6e06b5be8dccaff140e14a5f71fa64df"><td class="memItemLeft" align="right" valign="top">static const double </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#a6e06b5be8dccaff140e14a5f71fa64df">kUnknownDoubleParamValue</a> = -2.0</td></tr>
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<tr class="memitem:a0623b9007b18f0e4bb078fb6eb4dadaa"><td class="memItemLeft" align="right" valign="top">static const int </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#a0623b9007b18f0e4bb078fb6eb4dadaa">kUnknownIntegerParamValue</a> = -2</td></tr>
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<tr class="memitem:a016e9dcdc549105df6e8ceb5b1933ae5"><td class="memItemLeft" align="right" valign="top">static const double </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#a016e9dcdc549105df6e8ceb5b1933ae5">kDefaultRelativeMipGap</a> = 1e-4</td></tr>
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<tr class="memitem:ad8ba7aa861c60e1fcd1b8b0eadcbdb7f"><td class="memItemLeft" align="right" valign="top">static const double </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#ad8ba7aa861c60e1fcd1b8b0eadcbdb7f">kDefaultPrimalTolerance</a></td></tr>
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<tr class="memitem:a6a912e59104bf30bee9f5e3f35bc0281"><td class="memItemLeft" align="right" valign="top">static const double </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#a6a912e59104bf30bee9f5e3f35bc0281">kDefaultDualTolerance</a> = 1e-7</td></tr>
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<tr class="memitem:a4891c3a4994cbf057dd7ad15c58c2809"><td class="memItemLeft" align="right" valign="top">static const <a class="el" href="classoperations__research_1_1MPSolverParameters.html#ad01b184e1c49d8aabd15a268ff976ac8">PresolveValues</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#a4891c3a4994cbf057dd7ad15c58c2809">kDefaultPresolve</a></td></tr>
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<tr class="memitem:a2efecb72c616192403a769b98e51ec19"><td class="memItemLeft" align="right" valign="top">static const <a class="el" href="classoperations__research_1_1MPSolverParameters.html#a215b66c2ff063ffbf5b538ee402304cb">IncrementalityValues</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#a2efecb72c616192403a769b98e51ec19">kDefaultIncrementality</a></td></tr>
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<h2 class="groupheader">Member Enumeration Documentation</h2>
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<a id="a397e8c8da87415d5408e2dd5ec3e9932"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a397e8c8da87415d5408e2dd5ec3e9932">◆ </a></span>DoubleParam</h2>
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<p>Enumeration of parameters that take continuous values. </p>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="a397e8c8da87415d5408e2dd5ec3e9932af5546ac8a26f50d8798bf634598a7eba"></a>RELATIVE_MIP_GAP </td><td class="fielddoc"><p>Limit for relative MIP gap. </p>
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<tr><td class="fieldname"><a id="a397e8c8da87415d5408e2dd5ec3e9932a8c7c9aed0dcd36fc9a9af2fab295caf3"></a>PRIMAL_TOLERANCE </td><td class="fielddoc"><p>Advanced usage: tolerance for primal feasibility of basic solutions. </p>
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<tr><td class="fieldname"><a id="a397e8c8da87415d5408e2dd5ec3e9932a184546f243ecb7d9be48659f8be82992"></a>DUAL_TOLERANCE </td><td class="fielddoc"><p>Advanced usage: tolerance for dual feasibility of basic solutions. </p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8h_source.html#l01361">1361</a> of file <a class="el" href="linear__solver_8h_source.html">linear_solver.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a215b66c2ff063ffbf5b538ee402304cb">◆ </a></span>IncrementalityValues</h2>
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<p>Advanced usage: Incrementality options. </p>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="a215b66c2ff063ffbf5b538ee402304cba01f385fe2acfe85efe038aa62b31edfb"></a>INCREMENTALITY_OFF </td><td class="fielddoc"><p>Start solve from scratch. </p>
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<tr><td class="fieldname"><a id="a215b66c2ff063ffbf5b538ee402304cba34d17de87fc7339e07256ca5319dfa67"></a>INCREMENTALITY_ON </td><td class="fielddoc"><p>Reuse results from previous solve as much as the underlying solver allows. </p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8h_source.html#l01407">1407</a> of file <a class="el" href="linear__solver_8h_source.html">linear_solver.h</a>.</p>
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<p>Enumeration of parameters that take integer or categorical values. </p>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="a7319655592ea63d50ef2a6645e309784a780328d13ea3b977de745d674da87403"></a>PRESOLVE </td><td class="fielddoc"><p>Advanced usage: presolve mode. </p>
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<tr><td class="fieldname"><a id="a7319655592ea63d50ef2a6645e309784a420e8170e7ec327dd847b9610fc4565b"></a>LP_ALGORITHM </td><td class="fielddoc"><p>Algorithm to solve linear programs. </p>
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<tr><td class="fieldname"><a id="a7319655592ea63d50ef2a6645e309784adabd0cf2fcb5726b7fc2aa3d54d5f3ff"></a>INCREMENTALITY </td><td class="fielddoc"><p>Advanced usage: incrementality from one solve to the next. </p>
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<tr><td class="fieldname"><a id="a7319655592ea63d50ef2a6645e309784a4d52eb956c0c02b9cbc37720f27abbb0"></a>SCALING </td><td class="fielddoc"><p>Advanced usage: enable or disable matrix scaling. </p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8h_source.html#l01377">1377</a> of file <a class="el" href="linear__solver_8h_source.html">linear_solver.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a79b59c0c868544afdaa05d89c8f8541f">◆ </a></span>LpAlgorithmValues</h2>
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<p>LP algorithm to use. </p>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="a79b59c0c868544afdaa05d89c8f8541fa95aac881295562f873fc2ce46a8b8b1b"></a>DUAL </td><td class="fielddoc"><p>Dual simplex. </p>
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<tr><td class="fieldname"><a id="a79b59c0c868544afdaa05d89c8f8541fab6a6dd2cfc5b8fd6060e8a50573bb3ee"></a>PRIMAL </td><td class="fielddoc"><p>Primal simplex. </p>
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<tr><td class="fieldname"><a id="a79b59c0c868544afdaa05d89c8f8541faef10b8804992b6a16960332346c21493"></a>BARRIER </td><td class="fielddoc"><p>Barrier algorithm. </p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8h_source.html#l01397">1397</a> of file <a class="el" href="linear__solver_8h_source.html">linear_solver.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ad01b184e1c49d8aabd15a268ff976ac8">◆ </a></span>PresolveValues</h2>
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<p>For each categorical parameter, enumeration of possible values. </p>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="ad01b184e1c49d8aabd15a268ff976ac8a9d70aea1ff48f145644d82953fd4322a"></a>PRESOLVE_OFF </td><td class="fielddoc"><p>Presolve is off. </p>
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<tr><td class="fieldname"><a id="ad01b184e1c49d8aabd15a268ff976ac8a3b48e7f264e3228b1494312657fd611a"></a>PRESOLVE_ON </td><td class="fielddoc"><p>Presolve is on. </p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8h_source.html#l01389">1389</a> of file <a class="el" href="linear__solver_8h_source.html">linear_solver.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a25a1112e410b183f49ef4ce8da1bdc74">◆ </a></span>ScalingValues</h2>
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<p>Advanced usage: Scaling options. </p>
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<tr><td class="fieldname"><a id="a25a1112e410b183f49ef4ce8da1bdc74a62fd26c37f80b6aabec3b463c55a1c85"></a>SCALING_ON </td><td class="fielddoc"><p>Scaling is on. </p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8h_source.html#l01419">1419</a> of file <a class="el" href="linear__solver_8h_source.html">linear_solver.h</a>.</p>
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<h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#aeeef6511f130ba8a9db2c308dbeada5c">◆ </a></span>MPSolverParameters()</h2>
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<td>(</td>
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<p>The constructor sets all parameters to their default value. </p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8cc_source.html#l01825">1825</a> of file <a class="el" href="linear__solver_8cc_source.html">linear_solver.cc</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a692014f815d7927760762b046675f658">◆ </a></span>GetDoubleParam()</h2>
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<td class="memname">double GetDoubleParam </td>
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<td class="paramtype"><a class="el" href="classoperations__research_1_1MPSolverParameters.html#a397e8c8da87415d5408e2dd5ec3e9932">MPSolverParameters::DoubleParam</a> </td>
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<p>Returns the value of a double parameter. </p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8cc_source.html#l01954">1954</a> of file <a class="el" href="linear__solver_8cc_source.html">linear_solver.cc</a>.</p>
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<p>Returns the value of an integer parameter. </p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8cc_source.html#l01973">1973</a> of file <a class="el" href="linear__solver_8cc_source.html">linear_solver.cc</a>.</p>
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<p>Sets all parameters to their default value. </p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8cc_source.html#l01944">1944</a> of file <a class="el" href="linear__solver_8cc_source.html">linear_solver.cc</a>.</p>
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<p>Sets a double parameter to its default value (default value defined in <a class="el" href="classoperations__research_1_1MPSolverParameters.html" title="This class stores parameter settings for LP and MIP solvers.">MPSolverParameters</a> if it exists, otherwise the default value defined in the underlying solver). </p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8cc_source.html#l01898">1898</a> of file <a class="el" href="linear__solver_8cc_source.html">linear_solver.cc</a>.</p>
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<p>Sets an integer parameter to its default value (default value defined in <a class="el" href="classoperations__research_1_1MPSolverParameters.html" title="This class stores parameter settings for LP and MIP solvers.">MPSolverParameters</a> if it exists, otherwise the default value defined in the underlying solver). </p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8cc_source.html#l01919">1919</a> of file <a class="el" href="linear__solver_8cc_source.html">linear_solver.cc</a>.</p>
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<p>Sets a double parameter to a specific value. </p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8cc_source.html#l01835">1835</a> of file <a class="el" href="linear__solver_8cc_source.html">linear_solver.cc</a>.</p>
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<p>Sets a integer parameter to a specific value. </p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8cc_source.html#l01856">1856</a> of file <a class="el" href="linear__solver_8cc_source.html">linear_solver.cc</a>.</p>
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<h2 class="groupheader">Member Data Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#ae80ed8b6fcbcb848b18d657d62c26522">◆ </a></span>kDefaultDoubleParamValue</h2>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8h_source.html#l01428">1428</a> of file <a class="el" href="linear__solver_8h_source.html">linear_solver.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a6a912e59104bf30bee9f5e3f35bc0281">◆ </a></span>kDefaultDualTolerance</h2>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8h_source.html#l01442">1442</a> of file <a class="el" href="linear__solver_8h_source.html">linear_solver.h</a>.</p>
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<b>Initial value:</b><div class="fragment"><div class="line">=</div>
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<div class="line"> <a class="code" href="classoperations__research_1_1MPSolverParameters.html#a215b66c2ff063ffbf5b538ee402304cba34d17de87fc7339e07256ca5319dfa67">MPSolverParameters::INCREMENTALITY_ON</a></div>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8h_source.html#l01444">1444</a> of file <a class="el" href="linear__solver_8h_source.html">linear_solver.h</a>.</p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8h_source.html#l01429">1429</a> of file <a class="el" href="linear__solver_8h_source.html">linear_solver.h</a>.</p>
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<td class="memname">const <a class="el" href="classoperations__research_1_1MPSolverParameters.html#ad01b184e1c49d8aabd15a268ff976ac8">MPSolverParameters::PresolveValues</a> kDefaultPresolve</td>
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<b>Initial value:</b><div class="fragment"><div class="line">=</div>
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<div class="line"> <a class="code" href="classoperations__research_1_1MPSolverParameters.html#ad01b184e1c49d8aabd15a268ff976ac8a3b48e7f264e3228b1494312657fd611a">MPSolverParameters::PRESOLVE_ON</a></div>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8h_source.html#l01443">1443</a> of file <a class="el" href="linear__solver_8h_source.html">linear_solver.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ad8ba7aa861c60e1fcd1b8b0eadcbdb7f">◆ </a></span>kDefaultPrimalTolerance</h2>
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<b>Initial value:</b><div class="fragment"><div class="line">=</div>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8h_source.html#l01441">1441</a> of file <a class="el" href="linear__solver_8h_source.html">linear_solver.h</a>.</p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8h_source.html#l01440">1440</a> of file <a class="el" href="linear__solver_8h_source.html">linear_solver.h</a>.</p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8h_source.html#l01432">1432</a> of file <a class="el" href="linear__solver_8h_source.html">linear_solver.h</a>.</p>
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<p class="definition">Definition at line <a class="el" href="linear__solver_8h_source.html#l01433">1433</a> of file <a class="el" href="linear__solver_8h_source.html">linear_solver.h</a>.</p>
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<hr/>The documentation for this class was generated from the following files:<ul>
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<div class="ttc" id="aclassoperations__research_1_1MPSolverParameters_html_a215b66c2ff063ffbf5b538ee402304cba34d17de87fc7339e07256ca5319dfa67"><div class="ttname"><a href="classoperations__research_1_1MPSolverParameters.html#a215b66c2ff063ffbf5b538ee402304cba34d17de87fc7339e07256ca5319dfa67">operations_research::MPSolverParameters::INCREMENTALITY_ON</a></div><div class="ttdeci">@ INCREMENTALITY_ON</div><div class="ttdoc">Reuse results from previous solve as much as the underlying solver allows.</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8h_source.html#l01416">linear_solver.h:1415</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html_a221d711fbd5a16db9dc92a3c5095cbf5"><div class="ttname"><a href="namespaceoperations__research.html#a221d711fbd5a16db9dc92a3c5095cbf5">operations_research::kDefaultPrimalTolerance</a></div><div class="ttdeci">constexpr double kDefaultPrimalTolerance</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8h_source.html#l00162">linear_solver.h:162</a></div></div>
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