| |
| /* |
| This file implements a wrapper to the PRIMME library |
| */ |
| |
| #include "src/eps/epsimpl.h" |
| |
| EXTERN_C_BEGIN |
| #include "primme.h" |
| EXTERN_C_END |
| |
| #ifndef PETSC_USE_COMPLEX |
| typedef double PRIMMEScalar; |
| #else |
| typedef Complex_Z PRIMMEScalar; |
| #endif |
| |
| typedef struct { |
| primme_params primme; /* param struc */ |
| primme_preset_method method; /* primme method */ |
| Mat A; /* problem matrix */ |
| Vec M; /* store reciprocal A diagonal */ |
| } EPS_PRIMME; |
| |
| void multMatvec_PRIMME(PRIMMEScalar *in, PRIMMEScalar *out, int *blockSize, primme_params *primme); |
| void applyPreconditioner_PRIMME(PRIMMEScalar *in, PRIMMEScalar *out, int *blockSize, struct primme_params *primme); |
| void par_GlobalSumDouble(void *sendBuf, void *recvBuf, int *count, primme_params *primme); |
| |
| void par_GlobalSumDouble(void *sendBuf, void *recvBuf, int *count, primme_params *primme) { |
| MPI_Allreduce((double*)sendBuf, (double*)recvBuf, *count, MPI_DOUBLE, MPI_SUM, PETSC_COMM_WORLD); |
| } |
| |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSSetUp_PRIMME" |
| PetscErrorCode EPSSetUp_PRIMME(EPS eps) |
| { |
| PetscErrorCode ierr; |
| PetscInt N, n, numProcs, procID; |
| PetscScalar *a; |
| Mat B; |
| EPS_PRIMME *ops = (EPS_PRIMME *)eps->data; |
| primme_params *primme = &(((EPS_PRIMME *)eps->data)->primme); |
| |
| PetscFunctionBegin; |
| |
| MPI_Comm_size(PETSC_COMM_WORLD, &numProcs); |
| MPI_Comm_rank(PETSC_COMM_WORLD, &procID); |
| |
| /* Check some constrains and set some default values */ |
| ierr = VecGetSize(eps->vec_initial,&N);CHKERRQ(ierr); |
| ierr = VecGetLocalSize(eps->vec_initial,&n);CHKERRQ(ierr); |
| if (!eps->ncv) eps->ncv = eps->nev+primme->maxBlockSize; |
| if (eps->ncv < eps->nev+primme->maxBlockSize) |
| SETERRQ(PETSC_ERR_SUP,"PRIMME needs ncv >= nev+maxBlockSize"); |
| if (!eps->max_it) eps->max_it = PetscMax(100,N); |
| if (!eps->tol) eps->tol = 1.e-7; |
| ierr = STGetOperators(eps->OP, &ops->A, &B); |
| if (!ops->A) SETERRQ(PETSC_ERR_SUP,"PRIMME needs a matrix A"); |
| if (B) SETERRQ(PETSC_ERR_SUP,"PRIMME doesn't solve generalized problem"); |
| |
| if (!eps->ishermitian) |
| SETERRQ(PETSC_ERR_SUP,"PRIMME was only built for Hermitian problems"); |
| |
| /* Transfer SLEPc options to PRIMME options */ |
| primme->n = N; |
| primme->nLocal = n; |
| primme->numEvals = eps->nev; |
| primme->matrix = &ops->A; |
| primme->initSize = 1; |
| /* primme->maxBasisSize = eps->ncv; */ |
| primme->maxMatvecs = eps->max_it; |
| primme->eps = eps->tol; |
| primme->numProcs = numProcs; |
| primme->procID = procID; |
| primme->globalSumDouble = par_GlobalSumDouble; |
| |
| switch(eps->which) { |
| case EPS_LARGEST_MAGNITUDE: |
| primme->target = primme_largest; |
| break; |
| |
| case EPS_SMALLEST_MAGNITUDE: |
| primme->target = primme_smallest; |
| break; |
| |
| default: |
| SETERRQ(PETSC_ERR_SUP,"PRIMME only allows EPS_LARGEST_MAGNITUDE and EPS_SMALLEST_MAGNITUDE for 'which' value"); |
| break; |
| } |
| primme_set_method(ops->method, primme); |
| |
| /* Set workspace */ |
| ierr = EPSAllocateSolutionContiguous(eps);CHKERRQ(ierr); |
| |
| /* Copy vec_initial to V[0] vector */ |
| ierr = VecGetArray(eps->vec_initial, &a); CHKERRQ(ierr); |
| ierr = VecCopy(eps->vec_initial, eps->V[0]); CHKERRQ(ierr); |
| ierr = VecRestoreArray(eps->vec_initial, &a); CHKERRQ(ierr); |
| |
| if (primme->correctionParams.precondition == 1 ) { |
| /* Calc reciprocal A diagonal */ |
| ierr = VecDuplicate(eps->vec_initial, &ops->M); CHKERRQ(ierr); |
| ierr = MatGetDiagonal(ops->A, ops->M); CHKERRQ(ierr); |
| ierr = VecReciprocal(ops->M); CHKERRQ(ierr); |
| primme->preconditioner = &ops->M; |
| primme->applyPreconditioner = applyPreconditioner_PRIMME; |
| } |
| |
| PetscFunctionReturn(0); |
| } |
| |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSSolve_PRIMME" |
| PetscErrorCode EPSSolve_PRIMME(EPS eps) |
| { |
| PetscErrorCode ierr; |
| EPS_PRIMME *ops = (EPS_PRIMME *)eps->data; |
| PetscScalar *a; |
| #ifdef PETSC_USE_COMPLEX |
| int i; |
| #endif |
| |
| PetscFunctionBegin; |
| |
| /* Call PRIMME solver */ |
| ierr = VecGetArray(eps->V[0], &a); CHKERRQ(ierr); |
| #ifndef PETSC_USE_COMPLEX |
| ierr = dprimme(eps->eigr, a, eps->errest, &ops->primme); |
| #else |
| /* In order to optimize memory, we are going to use eps->eigr and eps->eigr like a (double*) */ |
| ierr = zprimme((double*)eps->eigr, (Complex_Z*)a, (double*)eps->errest, &ops->primme); |
| #endif |
| ierr = VecRestoreArray(eps->V[0], &a); CHKERRQ(ierr); |
| |
| switch(ierr) { |
| case 0: /* Successful */ |
| break; |
| |
| case -1: |
| SETERRQ(PETSC_ERR_SUP,"PRIMME: Failed to open output file"); |
| break; |
| |
| case -2: |
| SETERRQ(PETSC_ERR_SUP,"PRIMME: Insufficient integer or real workspace allocated"); |
| break; |
| |
| case -3: |
| SETERRQ(PETSC_ERR_SUP,"PRIMME: main_iter encountered a problem"); |
| break; |
| |
| default: |
| SETERRQ(PETSC_ERR_SUP,"PRIMME: some parameters wrong configured"); |
| break; |
| } |
| |
| eps->nconv = ops->primme.initSize>=0?ops->primme.initSize:0; |
| eps->reason = EPS_CONVERGED_TOL; |
| eps->its = ops->primme.stats.numMatvecs; |
| |
| #ifdef PETSC_USE_COMPLEX |
| /* PRIMME return real eigenvalues, but SLEPc work with complex ones, so we must cast them */ |
| ierr = PetscMalloc(eps->nconv*sizeof(PetscScalar), &a); CHKERRQ(ierr); |
| for(i=0; i<eps->nconv; i++) |
| a[i] = PetscScalar(((double*)eps->eigr)[i], 0.0); |
| ierr = PetscFree(eps->eigr); CHKERRQ(ierr); |
| eps->eigr = a; |
| #else |
| ierr = PetscMemzero(eps->eigi, eps->nconv*sizeof(double)); CHKERRQ(ierr); |
| #endif |
| PetscFunctionReturn(0); |
| } |
| |
| void multMatvec_PRIMME(PRIMMEScalar *in, PRIMMEScalar *out, int *blockSize, primme_params *primme) |
| { |
| int i, ierr, N = primme->n; |
| Vec x,y; |
| Mat *A = (Mat*)(primme->matrix); |
| ierr = VecCreateMPIWithArray(PETSC_COMM_WORLD,primme->nLocal,N,PETSC_NULL,&x);/*CHKERRQ(ierr);*/ |
| ierr = VecCreateMPIWithArray(PETSC_COMM_WORLD,primme->nLocal,N,PETSC_NULL,&y);/*CHKERRQ(ierr);*/ |
| |
| for (i=0;i<*blockSize;i++) { |
| /* build vectors using 'in' an 'out' workspace */ |
| ierr = VecPlaceArray(x, (PetscScalar*)in+N*i );/*CHKERRQ(ierr);*/ |
| ierr = VecPlaceArray(y, (PetscScalar*)out+N*i );/*CHKERRQ(ierr);*/ |
| |
| ierr = MatMult(*A, x, y);/*CHKERRQ(ierr);*/ |
| |
| ierr = VecResetArray(x);/*CHKERRQ(ierr);*/ |
| ierr = VecResetArray(y);/*CHKERRQ(ierr);*/ |
| } |
| |
| ierr = VecDestroy(x);/*CHKERRQ(ierr);*/ |
| ierr = VecDestroy(y);/*CHKERRQ(ierr);*/ |
| } |
| |
| void applyPreconditioner_PRIMME(PRIMMEScalar *in, PRIMMEScalar *out, int *blockSize, struct primme_params *primme) |
| { |
| int i, ierr, N = primme->n; |
| Vec x,y,M = *(Vec*)(primme->preconditioner); |
| ierr = VecCreateMPIWithArray(PETSC_COMM_WORLD,primme->nLocal,N,PETSC_NULL,&x);/*CHKERRQ(ierr);*/ |
| ierr = VecCreateMPIWithArray(PETSC_COMM_WORLD,primme->nLocal,N,PETSC_NULL,&y);/*CHKERRQ(ierr);*/ |
| |
| for (i=0;i<*blockSize;i++) { |
| /* build vectors using 'in' an 'out' workspace */ |
| ierr = VecPlaceArray(x, (PetscScalar*)in+N*i );/*CHKERRQ(ierr);*/ |
| ierr = VecPlaceArray(y, (PetscScalar*)out+N*i );/*CHKERRQ(ierr);*/ |
| |
| ierr = VecPointwiseMult(y, M, x);/*CHKERRQ(ierr);*/ |
| |
| ierr = VecResetArray(x);/*CHKERRQ(ierr);*/ |
| ierr = VecResetArray(y);/*CHKERRQ(ierr);*/ |
| } |
| |
| ierr = VecDestroy(x);/*CHKERRQ(ierr);*/ |
| ierr = VecDestroy(y);/*CHKERRQ(ierr);*/ |
| } |
| |
| |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSDestroy_PRIMME" |
| PetscErrorCode EPSDestroy_PRIMME(EPS eps) |
| { |
| PetscErrorCode ierr; |
| EPS_PRIMME *ops = (EPS_PRIMME *)eps->data; |
| |
| PetscFunctionBegin; |
| PetscValidHeaderSpecific(eps,EPS_COOKIE,1); |
| |
| primme_Free(&ops->primme); |
| ierr = PetscFree(eps->data); CHKERRQ(ierr); |
| ierr = EPSFreeSolutionContiguous(eps);CHKERRQ(ierr); |
| |
| PetscFunctionReturn(0); |
| } |
| |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSView_PRIMME" |
| PetscErrorCode EPSView_PRIMME(EPS eps,PetscViewer viewer) |
| { |
| PetscFunctionBegin; |
| SETERRQ1(1,"Viewer type %s not supported for PRIMME",((PetscObject)viewer)->type_name); |
| PetscFunctionReturn(0); |
| } |
| |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSSetFromOptions_PRIMME" |
| PetscErrorCode EPSSetFromOptions_PRIMME(EPS eps) |
| { |
| PetscErrorCode ierr; |
| EPS_PRIMME *ops = (EPS_PRIMME *)eps->data; |
| PetscInt op; |
| PetscTruth flg; |
| const char *methodList[] = { |
| "DEFAULT_MIN_TIME", |
| "DEFAULT_MIN_MATVECS", |
| "Arnoldi", |
| "GD", |
| "GD_plusK", |
| "GD_Olsen_plusK", |
| "JD_Olsen_plusK", |
| "RQI", |
| "JDQR", |
| "JDQMR", |
| "JDQMR_ETol", |
| "SUBSPACE_ITERATION", |
| "LOBPCG_OrthoBasis", |
| "LOBPCG_OrthoBasis_Window" |
| }, *restartList[] = {"thick", "dtr"}, |
| *precondList[] = {"none", "diagonal"}; |
| EPS_primme_preset_method methodN[] = { |
| EPSPRIMME_DEFAULT_MIN_TIME, |
| EPSPRIMME_DEFAULT_MIN_MATVECS, |
| EPSPRIMME_Arnoldi, |
| EPSPRIMME_GD, |
| EPSPRIMME_GD_plusK, |
| EPSPRIMME_GD_Olsen_plusK, |
| EPSPRIMME_JD_Olsen_plusK, |
| EPSPRIMME_RQI, |
| EPSPRIMME_JDQR, |
| EPSPRIMME_JDQMR, |
| EPSPRIMME_JDQMR_ETol, |
| EPSPRIMME_SUBSPACE_ITERATION, |
| EPSPRIMME_LOBPCG_OrthoBasis, |
| EPSPRIMME_LOBPCG_OrthoBasis_Window |
| }; |
| EPS_primme_restartscheme restartN[] = {EPSPRIMME_thick, EPSPRIMME_dtr}; |
| |
| PetscFunctionBegin; |
| |
| ierr = PetscOptionsHead("PRIMME options");CHKERRQ(ierr); |
| |
| op = ops->primme.maxBlockSize; |
| ierr = PetscOptionsInt("-eps_primme_maxBlockSize"," Max block size","EPSPRIMMESetBlockSize",op,&op,&flg); CHKERRQ(ierr); |
| if (flg) {ierr = EPSPRIMMESetBlockSize(eps,op);CHKERRQ(ierr);} |
| op = 0; |
| ierr = PetscOptionsEList("-eps_primme_method","set method for solving the eigenproblem", |
| "EPSPRIMMESetMethod",methodList,14,methodList[0],&op,&flg); CHKERRQ(ierr); |
| if (flg) {ierr = EPSPRIMMESetMethod(eps, methodN[op]);CHKERRQ(ierr);} |
| ierr = PetscOptionsEList("-eps_primme_restart","set the restarting scheme", |
| "EPSPRIMMESetRestart",restartList,2,restartList[0],&op,&flg); CHKERRQ(ierr); |
| if (flg) {ierr = EPSPRIMMESetRestart(eps, restartN[op]);CHKERRQ(ierr);} |
| ierr = PetscOptionsEList("-eps_primme_precond","set precondition", |
| "EPSPRIMMESetPrecond",precondList,2,precondList[0],&op,&flg); CHKERRQ(ierr); |
| if (flg) {ierr = EPSPRIMMESetPrecond(eps, op);CHKERRQ(ierr);} |
| |
| ierr = PetscOptionsTail();CHKERRQ(ierr); |
| |
| PetscFunctionReturn(0); |
| } |
| |
| EXTERN_C_BEGIN |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSPRIMMESetBlockSize_PRIMME" |
| PetscErrorCode EPSPRIMMESetBlockSize_PRIMME(EPS eps,int bs) |
| { |
| EPS_PRIMME *ops = (EPS_PRIMME *) eps->data; |
| |
| PetscFunctionBegin; |
| |
| if (bs == PETSC_DEFAULT) ops->primme.maxBlockSize = 1; |
| else if (bs <= 0) { |
| SETERRQ(1, "PRIMME: wrong block size"); |
| } else ops->primme.maxBlockSize = bs; |
| |
| PetscFunctionReturn(0); |
| } |
| EXTERN_C_END |
| |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSPRIMMESetBlockSize" |
| /*@C |
| EPSPRIMMESetBlockSize - The maximum block size the code will try to use. The user should set |
| this based on the architecture specifics of the target computer, |
| as well as any a priori knowledge of multiplicities. The code does |
| NOT require BlockSize > 1 to find multiple eigenvalues. For some |
| methods, keeping BlockSize = 1 yields the best overall performance. |
| |
| Collective on EPS |
| |
| Input Parameters: |
| + eps - the eigenproblem solver context |
| - bs - block size |
| |
| Options Database Key: |
| . -eps_primme_maxBlockSize - Sets the max allowed block size value |
| |
| Note: |
| + If it doesn't set it keeps the value established by primme_initialize. |
| - Inner iterations of QMR are not performed in a block fashion. Every correction equation from a block is solved independently. |
| |
| Level: advanced |
| .seealso: EPSPRIMMEGetBlockSize() |
| @*/ |
| PetscErrorCode EPSPRIMMESetBlockSize(EPS eps,int bs) |
| { |
| PetscErrorCode ierr, (*f)(EPS,int); |
| |
| PetscFunctionBegin; |
| |
| PetscValidHeaderSpecific(eps,EPS_COOKIE,1); |
| ierr = PetscObjectQueryFunction((PetscObject)eps,"EPSPRIMMESetBlockSize_C",(void (**)())&f);CHKERRQ(ierr); |
| if (f) { |
| ierr = (*f)(eps,bs);CHKERRQ(ierr); |
| } |
| |
| PetscFunctionReturn(0); |
| } |
| |
| EXTERN_C_BEGIN |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSPRIMMEGetBlockSize_PRIMME" |
| PetscErrorCode EPSPRIMMEGetBlockSize_PRIMME(EPS eps,int *bs) |
| { |
| EPS_PRIMME *ops = (EPS_PRIMME *) eps->data; |
| |
| PetscFunctionBegin; |
| |
| if (bs) *bs = ops->primme.maxBlockSize; |
| |
| PetscFunctionReturn(0); |
| } |
| EXTERN_C_END |
| |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSPRIMMEGetBlockSize" |
| /*@C |
| EPSPRIMMEGetBlockSize - Get the maximum block size the code will try to use. |
| |
| Collective on EPS |
| |
| Input Parameters: |
| . eps - the eigenproblem solver context |
| |
| Output Parameters: |
| . bs - returned block size |
| |
| Level: advanced |
| .seealso: EPSPRIMMESetBlockSize() |
| @*/ |
| PetscErrorCode EPSPRIMMEGetBlockSize(EPS eps,int *bs) |
| { |
| PetscErrorCode ierr, (*f)(EPS,int*); |
| |
| PetscFunctionBegin; |
| |
| PetscValidHeaderSpecific(eps,EPS_COOKIE,1); |
| ierr = PetscObjectQueryFunction((PetscObject)eps,"EPSPRIMMEGetBlockSize_C",(void (**)())&f);CHKERRQ(ierr); |
| if (f) { |
| ierr = (*f)(eps,bs);CHKERRQ(ierr); |
| } |
| |
| PetscFunctionReturn(0); |
| } |
| |
| |
| EXTERN_C_BEGIN |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSPRIMMESetMethod_PRIMME" |
| PetscErrorCode EPSPRIMMESetMethod_PRIMME(EPS eps, EPS_primme_preset_method method) |
| { |
| EPS_PRIMME *ops = (EPS_PRIMME *) eps->data; |
| |
| PetscFunctionBegin; |
| |
| if (method == PETSC_DEFAULT) ops->method = DEFAULT_MIN_TIME; |
| else ops->method = (primme_preset_method)method; |
| |
| PetscFunctionReturn(0); |
| } |
| EXTERN_C_END |
| |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSPRIMMESetMethod" |
| /*@C |
| EPSPRIMMESetMethod - Sets the method for the PRIMME library. |
| |
| Collective on EPS |
| |
| Input Parameters: |
| + eps - the eigenproblem solver context |
| - method - method that will be used by PRIMME. It must be one of next them: EPSPRIMME_DEFAULT_MIN_TIME(EPSPRIMME_JDQMR_ETol), |
| EPSPRIMME_DEFAULT_MIN_MATVECS(EPSPRIMME_GD_Olsen_plusK), EPSPRIMME_Arnoldi, EPSPRIMME_GD, EPSPRIMME_GD_plusK, EPSPRIMME_GD_Olsen_plusK, EPSPRIMME_JD_Olsen_plusK, EPSPRIMME_RQI, EPSPRIMME_JDQR, EPSPRIMME_JDQMR, |
| EPSPRIMME_JDQMR_ETol, EPSPRIMME_SUBSPACE_ITERATION, EPSPRIMME_LOBPCG_OrthoBasis, EPSPRIMME_LOBPCG_OrthoBasis_Window |
| |
| Options Database Key: |
| . -eps_primme_set_method - Sets the method for the PRIMME library. |
| |
| Note: If it doesn't set it does EPSPRIMME_DEFAULT_MIN_TIME. |
| |
| Level: advanced |
| .seealso: EPSPRIMMEGetMethod() |
| @*/ |
| PetscErrorCode EPSPRIMMESetMethod(EPS eps, EPS_primme_preset_method method) |
| { |
| PetscErrorCode ierr, (*f)(EPS,EPS_primme_preset_method); |
| |
| PetscFunctionBegin; |
| |
| PetscValidHeaderSpecific(eps,EPS_COOKIE,1); |
| ierr = PetscObjectQueryFunction((PetscObject)eps,"EPSPRIMMESetMethod_C",(void (**)())&f);CHKERRQ(ierr); |
| if (f) { |
| ierr = (*f)(eps,method); CHKERRQ(ierr); |
| } |
| |
| PetscFunctionReturn(0); |
| } |
| |
| |
| EXTERN_C_BEGIN |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSPRIMMEGetMethod_PRIMME" |
| PetscErrorCode EPSPRIMMEGetMethod_PRIMME(EPS eps, EPS_primme_preset_method *method) |
| { |
| EPS_PRIMME *ops = (EPS_PRIMME *) eps->data; |
| |
| PetscFunctionBegin; |
| |
| if (method) *method = (EPS_primme_preset_method)ops->method; |
| |
| PetscFunctionReturn(0); |
| } |
| EXTERN_C_END |
| |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSPRIMMEGetMethod" |
| /*@C |
| EPSPRIMMEGetMethod - Gets the method for the PRIMME library. |
| |
| Mon Collective on EPS |
| |
| Input Parameters: |
| . eps - the eigenproblem solver context |
| |
| Output Parameters: |
| . method - method that will be used by PRIMME. It must be one of next them: DEFAULT_MIN_TIME(JDQMR_ETol), |
| DEFAULT_MIN_MATVECS(GD_Olsen_plusK), Arnoldi, GD, GD_plusK, GD_Olsen_plusK, JD_Olsen_plusK, RQI, JDQR, JDQMR, |
| JDQMR_ETol, SUBSPACE_ITERATION, LOBPCG_OrthoBasis, LOBPCG_OrthoBasis_Window |
| |
| Level: advanced |
| .seealso: EPSPRIMMESetMethod() |
| @*/ |
| PetscErrorCode EPSPRIMMEGetMethod(EPS eps, EPS_primme_preset_method *method) |
| { |
| PetscErrorCode ierr, (*f)(EPS,EPS_primme_preset_method*); |
| |
| PetscFunctionBegin; |
| |
| PetscValidHeaderSpecific(eps,EPS_COOKIE,1); |
| ierr = PetscObjectQueryFunction((PetscObject)eps,"EPSPRIMMEGetMethod_C",(void (**)())&f);CHKERRQ(ierr); |
| if (f) { |
| ierr = (*f)(eps,method); CHKERRQ(ierr); |
| } |
| |
| PetscFunctionReturn(0); |
| } |
| |
| EXTERN_C_BEGIN |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSPRIMMESetRestart_PRIMME" |
| PetscErrorCode EPSPRIMMESetRestart_PRIMME(EPS eps, EPS_primme_restartscheme scheme) |
| { |
| EPS_PRIMME *ops = (EPS_PRIMME *) eps->data; |
| |
| PetscFunctionBegin; |
| |
| if (scheme == PETSC_DEFAULT) ops->primme.restartingParams.scheme = primme_thick; |
| else ops->primme.restartingParams.scheme = (primme_restartscheme)scheme; |
| |
| PetscFunctionReturn(0); |
| } |
| EXTERN_C_END |
| |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSPRIMMESetRestart" |
| /*@C |
| EPSPRIMMESetRestart - Sets the restarting scheme for the PRIMME library. |
| |
| Collective on EPS |
| |
| Input Parameters: |
| + eps - the eigenproblem solver context |
| - scheme - possible values are: EPSPRIMME_thick(thick restarting) is the most efficient and robust |
| in the general case, and EPSPRIMME_dtr(dynamic thick restarting) helpful without |
| preconditioning but it is expensive to implement. |
| |
| Options Database Key: |
| . -eps_primme_restart - Sets the restarting scheme for the PRIMME library |
| |
| Level: advanced |
| |
| @*/ |
| PetscErrorCode EPSPRIMMESetRestart(EPS eps, EPS_primme_restartscheme scheme) |
| { |
| PetscErrorCode ierr, (*f)(EPS, EPS_primme_restartscheme); |
| |
| PetscFunctionBegin; |
| |
| PetscValidHeaderSpecific(eps,EPS_COOKIE,1); |
| ierr = PetscObjectQueryFunction((PetscObject)eps,"EPSPRIMMESetRestart_C",(void (**)())&f);CHKERRQ(ierr); |
| if (f) { |
| ierr = (*f)(eps, scheme);CHKERRQ(ierr); |
| } |
| |
| PetscFunctionReturn(0); |
| } |
| |
| |
| EXTERN_C_BEGIN |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSPRIMMEGetRestart_PRIMME" |
| PetscErrorCode EPSPRIMMEGetRestart_PRIMME(EPS eps, EPS_primme_restartscheme *scheme) |
| { |
| EPS_PRIMME *ops = (EPS_PRIMME *) eps->data; |
| |
| PetscFunctionBegin; |
| |
| if (scheme) *scheme = (EPS_primme_restartscheme)ops->primme.restartingParams.scheme; |
| |
| PetscFunctionReturn(0); |
| } |
| EXTERN_C_END |
| |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSPRIMMEGetRestart" |
| /*@C |
| EPSPRIMMEGetRestart - Gets the restarting scheme for the PRIMME library. |
| |
| Non Collective on EPS |
| |
| Input Parameters: |
| . eps - the eigenproblem solver context |
| |
| Output Parameters: |
| . scheme - possible values are: EPSPRIMME_thick(thick restarting) is the most efficient and robust |
| in the general case, and EPSPRIMME_dtr(dynamic thick restarting) helpful without |
| preconditioning but it is expensive to implement. |
| |
| Level: advanced |
| .seealso: EPSPRIMMESetRestart() |
| @*/ |
| PetscErrorCode EPSPRIMMEGetRestart(EPS eps, EPS_primme_restartscheme *scheme) |
| { |
| PetscErrorCode ierr, (*f)(EPS, EPS_primme_restartscheme*); |
| |
| PetscFunctionBegin; |
| |
| PetscValidHeaderSpecific(eps,EPS_COOKIE,1); |
| ierr = PetscObjectQueryFunction((PetscObject)eps,"EPSPRIMMEGetRestart_C",(void (**)())&f);CHKERRQ(ierr); |
| if (f) { |
| ierr = (*f)(eps, scheme);CHKERRQ(ierr); |
| } |
| |
| PetscFunctionReturn(0); |
| } |
| |
| |
| EXTERN_C_BEGIN |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSPRIMMESetPrecond_PRIMME" |
| PetscErrorCode EPSPRIMMESetPrecond_PRIMME(EPS eps, int pre) |
| { |
| EPS_PRIMME *ops = (EPS_PRIMME *) eps->data; |
| |
| PetscFunctionBegin; |
| |
| if (pre == PETSC_DEFAULT) ops->primme.correctionParams.precondition = 0; |
| else if (pre != 0 && pre != 1) { |
| SETERRQ(1, "PRIMME: wrong precondition value (allowed 0 or 1)"); |
| } else ops->primme.correctionParams.precondition = pre; |
| |
| PetscFunctionReturn(0); |
| } |
| EXTERN_C_END |
| |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSPRIMMESetPrecond" |
| /*@C |
| EPSPRIMMESetPrecond - Sets either none or the diagonal matrix like preconditioner for the PRIMME library. |
| |
| Collective on EPS |
| |
| Input Parameters: |
| + eps - the eigenproblem solver context |
| - pre - posible values are: 0, no preconditioning and 1, diagonal matrix for preconditioning |
| |
| Options Database Key: |
| . -eps_primme_precond - Sets either none or the diagonal matrix like preconditioner for the PRIMME library |
| |
| Note: |
| The default values is 0, i. e., no preconditioning. |
| |
| Level: advanced |
| @*/ |
| PetscErrorCode EPSPRIMMESetPrecond(EPS eps, int pre) |
| { |
| PetscErrorCode ierr, (*f)(EPS, int); |
| |
| PetscFunctionBegin; |
| |
| PetscValidHeaderSpecific(eps,EPS_COOKIE,1); |
| ierr = PetscObjectQueryFunction((PetscObject)eps,"EPSPRIMMESetPrecond_C",(void (**)())&f);CHKERRQ(ierr); |
| if (f) { |
| ierr = (*f)(eps, pre);CHKERRQ(ierr); |
| } |
| |
| PetscFunctionReturn(0); |
| } |
| |
| |
| EXTERN_C_BEGIN |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSPRIMMEGetPrecond_PRIMME" |
| PetscErrorCode EPSPRIMMEGetPrecond_PRIMME(EPS eps, int *pre) |
| { |
| EPS_PRIMME *ops = (EPS_PRIMME *) eps->data; |
| |
| PetscFunctionBegin; |
| |
| if (pre) *pre = ops->primme.correctionParams.precondition; |
| |
| PetscFunctionReturn(0); |
| } |
| EXTERN_C_END |
| |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSPRIMMEGetPrecond" |
| /*@C |
| EPSPRIMMEGetPrecond - Gets if the diagonal matrix is going to use like preconditioner for the PRIMME library. |
| |
| Collective on EPS |
| |
| Input Parameters: |
| . eps - the eigenproblem solver context |
| |
| Output Parameters: |
| . pre - posible values are: 0, no preconditioning and 1, diagonal matrix for preconditioning |
| |
| Level: advanced |
| .seealso: EPSPRIMMEGetPrecond() |
| @*/ |
| PetscErrorCode EPSPRIMMEGetPrecond(EPS eps, int *pre) |
| { |
| PetscErrorCode ierr, (*f)(EPS, int*); |
| |
| PetscFunctionBegin; |
| |
| PetscValidHeaderSpecific(eps,EPS_COOKIE,1); |
| ierr = PetscObjectQueryFunction((PetscObject)eps,"EPSPRIMMEGetPrecond_C",(void (**)())&f);CHKERRQ(ierr); |
| if (f) { |
| ierr = (*f)(eps, pre);CHKERRQ(ierr); |
| } |
| |
| PetscFunctionReturn(0); |
| } |
| |
| |
| EXTERN_C_BEGIN |
| #undef __FUNCT__ |
| #define __FUNCT__ "EPSCreate_PRIMME" |
| PetscErrorCode EPSCreate_PRIMME(EPS eps) |
| { |
| PetscErrorCode ierr; |
| EPS_PRIMME *primme; |
| |
| PetscFunctionBegin; |
| |
| ierr = PetscNew(EPS_PRIMME,&primme);CHKERRQ(ierr); |
| PetscLogObjectMemory(eps,sizeof(EPS_PRIMME)); |
| eps->data = (void *) primme; |
| eps->ops->solve = EPSSolve_PRIMME; |
| eps->ops->setup = EPSSetUp_PRIMME; |
| eps->ops->setfromoptions = EPSSetFromOptions_PRIMME; |
| eps->ops->destroy = EPSDestroy_PRIMME; |
| eps->ops->view = EPSView_PRIMME; |
| eps->ops->backtransform = EPSBackTransform_Default; |
| eps->ops->computevectors = EPSComputeVectors_Default; |
| |
| primme_initialize(&primme->primme); |
| primme->primme.matrixMatvec = multMatvec_PRIMME; |
| primme->method = DEFAULT_MIN_TIME; |
| primme->A = 0; |
| primme->M = 0; |
| |
| ierr = PetscObjectComposeFunctionDynamic((PetscObject)eps,"EPSPRIMMESetBlockSize_C","EPSPRIMMESetBlockSize_PRIMME",EPSPRIMMESetBlockSize_PRIMME);CHKERRQ(ierr); |
| ierr = PetscObjectComposeFunctionDynamic((PetscObject)eps,"EPSPRIMMESetMethod_C","EPSPRIMMESetMethod_PRIMME",EPSPRIMMESetMethod_PRIMME);CHKERRQ(ierr); |
| ierr = PetscObjectComposeFunctionDynamic((PetscObject)eps,"EPSPRIMMESetRestart_C","EPSPRIMMESetRestart_PRIMME",EPSPRIMMESetMethod_PRIMME);CHKERRQ(ierr); |
| ierr = PetscObjectComposeFunctionDynamic((PetscObject)eps,"EPSPRIMMESetPrecond_C","EPSPRIMMESetPrecond_PRIMME",EPSPRIMMESetMethod_PRIMME);CHKERRQ(ierr); |
| |
| ierr = PetscObjectComposeFunctionDynamic((PetscObject)eps,"EPSPRIMMEGetBlockSize_C","EPSPRIMMEGetBlockSize_PRIMME",EPSPRIMMEGetBlockSize_PRIMME);CHKERRQ(ierr); |
| ierr = PetscObjectComposeFunctionDynamic((PetscObject)eps,"EPSPRIMMEGetMethod_C","EPSPRIMMEGetMethod_PRIMME",EPSPRIMMEGetMethod_PRIMME);CHKERRQ(ierr); |
| ierr = PetscObjectComposeFunctionDynamic((PetscObject)eps,"EPSPRIMMEGetRestart_C","EPSPRIMMEGetRestart_PRIMME",EPSPRIMMEGetMethod_PRIMME);CHKERRQ(ierr); |
| ierr = PetscObjectComposeFunctionDynamic((PetscObject)eps,"EPSPRIMMEGetPrecond_C","EPSPRIMMEGetPrecond_PRIMME",EPSPRIMMEGetMethod_PRIMME);CHKERRQ(ierr); |
| |
| PetscFunctionReturn(0); |
| } |
| EXTERN_C_END |
| |
| |