#include <assert.h>
#include "scip/lapack_calls.h"
#include "scip/def.h"
#include "scip/pub_message.h"
#include "blockmemshell/memory.h"
#include "scip/type_retcode.h"
#include "scip/nlpi_ipopt.h"
Go to the source code of this file.
Functions | |
Functions | |
SCIP_Bool | SCIPlapackIsAvailable (void) |
void | SCIPlapackVersion (int *majorver, int *minorver, int *patchver) |
SCIP_RETCODE | SCIPlapackComputeEigenvalues (BMS_BUFMEM *bufmem, SCIP_Bool geteigenvectors, int N, SCIP_Real *a, SCIP_Real *w) |
SCIP_RETCODE | SCIPlapackSolveLinearEquations (BMS_BUFMEM *bufmem, int n, SCIP_Real *A, SCIP_Real *b, SCIP_Real *x, SCIP_Bool *success) |
Function Documentation
◆ SCIPlapackIsAvailable()
SCIP_Bool SCIPlapackIsAvailable | ( | void | ) |
returns whether Lapack is available, i.e., whether it has been linked in
Definition at line 121 of file lapack_calls.c.
References FALSE, SCIPisIpoptAvailableIpopt(), and TRUE.
Referenced by detectSocQuadraticComplex(), SCIP_DECL_SEPAEXECLP(), SCIP_DECL_SEPAEXECSOL(), SCIPcomputeFacetVertexPolyhedralNonlinear(), and SCIPexprComputeQuadraticCurvature().
◆ SCIPlapackVersion()
void SCIPlapackVersion | ( | int * | majorver, |
int * | minorver, | ||
int * | patchver | ||
) |
returns whether Lapack s available, i.e., whether it has been linked in
- Parameters
-
majorver major version number minorver minor version number patchver patch version number
Definition at line 181 of file lapack_calls.c.
References F77_FUNC(), and NULL.
Referenced by doScipCreate().
◆ SCIPlapackComputeEigenvalues()
SCIP_RETCODE SCIPlapackComputeEigenvalues | ( | BMS_BUFMEM * | bufmem, |
SCIP_Bool | geteigenvectors, | ||
int | N, | ||
SCIP_Real * | a, | ||
SCIP_Real * | w | ||
) |
computes eigenvalues and eigenvectors of a dense symmetric matrix
Calls Lapack's DSYEV function.
- Parameters
-
bufmem buffer memory (or NULL if IPOPT is used) geteigenvectors should also eigenvectors should be computed? N dimension a matrix data on input (size N*N); eigenvectors on output if geteigenvectors == TRUE w array to store eigenvalues (size N) (or NULL)
Definition at line 352 of file lapack_calls.c.
References a, NULL, SCIP_CALL, SCIP_OKAY, SCIP_PLUGINNOTFOUND, SCIPcallLapackDsyevIpopt(), SCIPerrorMessage, SCIPisIpoptAvailableIpopt(), and w.
Referenced by detectSocQuadraticComplex(), getEigenValues(), and SCIPexprComputeQuadraticCurvature().
◆ SCIPlapackSolveLinearEquations()
SCIP_RETCODE SCIPlapackSolveLinearEquations | ( | BMS_BUFMEM * | bufmem, |
int | n, | ||
SCIP_Real * | A, | ||
SCIP_Real * | b, | ||
SCIP_Real * | x, | ||
SCIP_Bool * | success | ||
) |
solves a linear problem of the form Ax = b for a regular matrix A
Calls Lapacks DGETRF routine to calculate a LU factorization and uses this factorization to solve the linear problem Ax = b.
Code taken from nlpi_ipopt.cpp
- Parameters
-
bufmem buffer memory n dimension A matrix data on input (size N*N); filled column-wise b right hand side vector (size N) x buffer to store solution (size N) success pointer to store if the solving routine was successful
Definition at line 386 of file lapack_calls.c.
References b, BMSallocBufferMemoryArray, BMScopyMemoryArray, BMSduplicateBufferMemoryArray, BMSfreeBufferMemoryArray, F77_FUNC(), FALSE, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIP_UNUSED, SCIPdebugMessage, SCIPisIpoptAvailableIpopt(), SCIPsolveLinearEquationsIpopt(), TRUE, and x.
Referenced by computeHyperplaneThreePoints().