LIS_INT lis_matrix_set_csr(LIS_INT nnz, LIS_INT *ptr, LIS_INT *index, LIS_SCALAR *value, LIS_MATRIX A)
{
LIS_INT err;
LIS_DEBUG_FUNC_IN;
#if 0
err = lis_matrix_check(A,LIS_MATRIX_CHECK_SET);
if( err ) return err;
#else
if(lis_matrix_is_assembled(A)) return LIS_SUCCESS;
else {
err = lis_matrix_check(A,LIS_MATRIX_CHECK_SET);
if( err ) return err;
}
#endif
A->ptr = ptr;
A->index = index;
A->value = value;
A->is_copy = LIS_FALSE;
A->status = -LIS_MATRIX_CSR;
A->nnz = nnz;
LIS_DEBUG_FUNC_OUT;
return LIS_SUCCESS;
}
LIS_INT lis_matrix_setDLU_csr(LIS_INT nnzl, LIS_INT nnzu, LIS_SCALAR *diag, LIS_INT *lptr, LIS_INT *lindex, LIS_SCALAR *lvalue,
LIS_INT *uptr, LIS_INT *uindex, LIS_SCALAR *uvalue, LIS_MATRIX A)
{
LIS_INT err;
LIS_MATRIX_DIAG D;
LIS_DEBUG_FUNC_IN;
#if 0
err = lis_matrix_check(A,LIS_MATRIX_CHECK_SET);
if( err ) return err;
#else
if(lis_matrix_is_assembled(A)) return LIS_SUCCESS;
else {
err = lis_matrix_check(A,LIS_MATRIX_CHECK_SET);
if( err ) return err;
}
#endif
A->L = (LIS_MATRIX_CORE)lis_calloc(sizeof(struct LIS_MATRIX_CORE_STRUCT), "lis_matrix_setDLU_csr::A->L");
if( A->L==NULL )
{
LIS_SETERR_MEM(sizeof(struct LIS_MATRIX_CORE_STRUCT));
return LIS_OUT_OF_MEMORY;
}
A->U = (LIS_MATRIX_CORE)lis_calloc(sizeof(struct LIS_MATRIX_CORE_STRUCT), "lis_matrix_setDLU_csr::A->U");
if( A->U==NULL )
{
LIS_SETERR_MEM(sizeof(struct LIS_MATRIX_CORE_STRUCT));
lis_matrix_DLU_destroy(A);
return LIS_OUT_OF_MEMORY;
}
err = lis_matrix_diag_create(A->n,0,A->comm,&D);
if( err )
{
lis_matrix_DLU_destroy(A);
return err;
}
lis_free(D->value);
D->value = diag;
A->D = D;
A->L->nnz = nnzl;
A->L->ptr = lptr;
A->L->index = lindex;
A->L->value = lvalue;
A->U->nnz = nnzu;
A->U->ptr = uptr;
A->U->index = uindex;
A->U->value = uvalue;
A->is_copy = LIS_FALSE;
A->status = -LIS_MATRIX_CSR;
A->is_splited = LIS_TRUE;
LIS_DEBUG_FUNC_OUT;
return LIS_SUCCESS;
}
LIS_INT lis_output(LIS_MATRIX A, LIS_VECTOR b, LIS_VECTOR x, LIS_INT format, char *path)
{
LIS_INT err;
LIS_MATRIX B;
LIS_DEBUG_FUNC_IN;
#ifdef USE_MPI
MPI_Barrier(A->comm);
#endif
err = lis_matrix_check(A,LIS_MATRIX_CHECK_ALL);
if( err ) return err;
if( format==LIS_FMT_MM || format==LIS_FMT_MMB )
{
switch( A->matrix_type )
{
case LIS_MATRIX_CSR:
err = lis_output_mm_csr(A,b,x,format,path);
break;
default:
err = lis_matrix_duplicate(A,&B);
if( err ) return err;
lis_matrix_set_type(B,LIS_MATRIX_CSR);
err = lis_matrix_convert(A,B);
if( err ) return err;
err = lis_output_mm_csr(B,b,x,format,path);
lis_matrix_destroy(B);
break;
}
}
LIS_DEBUG_FUNC_OUT;
return err;
}
LIS_INT lis_input(LIS_MATRIX A, LIS_VECTOR b, LIS_VECTOR x, char *filename)
{
LIS_INT err;
LIS_INT fileformat;
char buf[256],banner[128];
FILE *file;
LIS_DEBUG_FUNC_IN;
err = lis_matrix_check(A,LIS_MATRIX_CHECK_NULL);
if( err ) return err;
if( b!=NULL && x!=NULL )
{
err = lis_vector_check(b,LIS_VECTOR_CHECK_NULL);
if( err ) return err;
err = lis_vector_check(x,LIS_VECTOR_CHECK_NULL);
if( err ) return err;
}
if( filename==NULL )
{
LIS_SETERR(LIS_ERR_ILL_ARG,"filname is NULL\n");
return LIS_ERR_ILL_ARG;
}
file = fopen(filename, "r");
if( file==NULL )
{
LIS_SETERR1(LIS_ERR_FILE_IO,"cannot open file %s\n",filename);
return LIS_ERR_FILE_IO;
}
/* file format check */
if( fgets(buf, 256, file) == NULL )
{
fclose(file);
return LIS_ERR_FILE_IO;
}
sscanf(buf, "%s", banner);
if( strncmp(banner, MM_BANNER, strlen(MM_BANNER)) == 0)
{
fileformat = LIS_FMT_MM;
}
/* else if( strncmp(banner, LISBanner, strlen(LISBanner)) == 0)
{
fileformat = LIS_FMT_LIS;
}
else if( strncmp(banner, ITBLBanner, strlen(ITBLBanner)) == 0)
{
fileformat = LIS_FMT_ITBL;
}
*/
else
{
fileformat = LIS_FMT_HB;
}
rewind(file);
/*
if( fileformat==LIS_FMT_FREE )
{
fclose(file);
err = lis_input_option(&option, filename);
if( err ) return err;
file = fopen(option.filename, "r");
if( file==NULL )
{
LIS_SETERR1(LIS_ERR_FILE_IO,"cannot open file %s\n",filename);
return LIS_ERR_FILE_IO;
}
}
*/
switch( fileformat )
{
case LIS_FMT_MM:
err = lis_input_mm(A,b,x,file);
break;
case LIS_FMT_HB:
err = lis_input_hb(A,b,x,file);
break;
/*
case LIS_FMT_ITBL:
err = lis_input_mmm(A,b,x,file,comm,matrix_type,bnr,bnc,row,col);
break;
case LIS_FMT_LIS:
err = lis_input_lis(A,b,x,filename,file,comm,matrix_type,bnr,bnc,row,col);
break;
case LIS_FMT_FREE:
err = lis_input_free(A,b,x,option,file,comm,matrix_type,bnr,bnc,row,col);
break;
*/
default:
fclose(file);
return err;
}
fclose(file);
#ifdef USE_MPI
MPI_Barrier(A->comm);
#endif
LIS_DEBUG_FUNC_OUT;
return err;
}
LIS_INT lis_matrix_copyDLU_csr(LIS_MATRIX Ain, LIS_MATRIX_DIAG *D, LIS_MATRIX *L, LIS_MATRIX *U)
{
LIS_INT err;
LIS_INT i,n,np,lnnz,unnz;
LIS_INT *lptr,*lindex;
LIS_INT *uptr,*uindex;
LIS_SCALAR *lvalue,*uvalue,*diag;
LIS_DEBUG_FUNC_IN;
*D = NULL;
*L = NULL;
*U = NULL;
err = lis_matrix_check(Ain,LIS_MATRIX_CHECK_ALL);
if( err ) return err;
n = Ain->n;
np = Ain->np;
err = lis_matrix_duplicate(Ain,L);
if( err )
{
return err;
}
err = lis_matrix_duplicate(Ain,U);
if( err )
{
lis_matrix_destroy(*L);
return err;
}
err = lis_matrix_diag_duplicateM(Ain,D);
if( err )
{
lis_matrix_destroy(*L);
lis_matrix_destroy(*U);
return err;
}
lis_free((*D)->value);
if( Ain->is_splited )
{
}
lnnz = Ain->L->nnz;
unnz = Ain->U->nnz;
lptr = NULL;
lindex = NULL;
uptr = NULL;
uindex = NULL;
diag = NULL;
err = lis_matrix_malloc_csr(n,lnnz,&lptr,&lindex,&lvalue);
if( err )
{
return err;
}
err = lis_matrix_malloc_csr(n,unnz,&uptr,&uindex,&uvalue);
if( err )
{
lis_free2(7,diag,uptr,lptr,uindex,lindex,uvalue,lvalue);
return err;
}
diag = (LIS_SCALAR *)lis_malloc(np*sizeof(LIS_SCALAR),"lis_matrix_copyDLU_csr::diag");
if( diag==NULL )
{
lis_free2(7,diag,uptr,lptr,uindex,lindex,uvalue,lvalue);
return err;
}
#ifdef _OPENMP
#pragma omp parallel for private(i)
#endif
for(i=0;i<n;i++)
{
diag[i] = Ain->D->value[i];
}
lis_matrix_elements_copy_csr(n,Ain->L->ptr,Ain->L->index,Ain->L->value,lptr,lindex,lvalue);
lis_matrix_elements_copy_csr(n,Ain->U->ptr,Ain->U->index,Ain->U->value,uptr,uindex,uvalue);
(*D)->value = diag;
err = lis_matrix_set_csr(lnnz,lptr,lindex,lvalue,*L);
if( err )
{
lis_free2(7,diag,uptr,lptr,uindex,lindex,uvalue,lvalue);
return err;
}
err = lis_matrix_set_csr(unnz,uptr,uindex,uvalue,*U);
if( err )
{
lis_free2(7,diag,uptr,lptr,uindex,lindex,uvalue,lvalue);
return err;
}
err = lis_matrix_assemble(*L);
if( err )
{
return err;
}
err = lis_matrix_assemble(*U);
if( err )
{
return err;
}
LIS_DEBUG_FUNC_OUT;
return LIS_SUCCESS;
}
LIS_INT lis_esolve(LIS_MATRIX A, LIS_VECTOR x, LIS_SCALAR *evalue0, LIS_ESOLVER esolver)
{
LIS_INT nesolver,niesolver,emaxiter;
LIS_SCALAR *evalue;
LIS_VECTOR *evector;
LIS_SCALAR *resid;
LIS_SCALAR *rhistory;
LIS_INT *iter,*iter2;
LIS_INT err;
LIS_INT output;
LIS_INT ss, mode;
double time;
double gshift;
LIS_INT estorage,eblock;
LIS_MATRIX B;
LIS_INT eprecision;
LIS_VECTOR xx;
LIS_DEBUG_FUNC_IN;
/* begin parameter check */
err = lis_matrix_check(A,LIS_MATRIX_CHECK_ALL);
if( err ) return err;
if( x==NULL )
{
LIS_SETERR(LIS_ERR_ILL_ARG,"vector x is undefined\n");
return LIS_ERR_ILL_ARG;
}
if( A->n!=x->n )
{
return LIS_ERR_ILL_ARG;
}
if( A->gn<=0 )
{
LIS_SETERR1(LIS_ERR_ILL_ARG,"Size n(=%d) of matrix A is less than 0\n",A->gn);
return LIS_ERR_ILL_ARG;
}
nesolver = esolver->options[LIS_EOPTIONS_ESOLVER];
niesolver = esolver->options[LIS_EOPTIONS_INNER_ESOLVER];
ss = esolver->options[LIS_EOPTIONS_SUBSPACE];
mode = esolver->options[LIS_EOPTIONS_MODE];
emaxiter = esolver->options[LIS_EOPTIONS_MAXITER];
gshift = esolver->params[LIS_EPARAMS_SHIFT - LIS_EOPTIONS_LEN];
output = esolver->options[LIS_EOPTIONS_OUTPUT];
estorage = esolver->options[LIS_EOPTIONS_STORAGE];
eblock = esolver->options[LIS_EOPTIONS_STORAGE_BLOCK];
eprecision = esolver->options[LIS_EOPTIONS_PRECISION];
esolver->eprecision = eprecision;
if( nesolver < 1 || nesolver > LIS_ESOLVER_LEN )
{
LIS_SETERR2(LIS_ERR_ILL_ARG,"Parameter LIS_EOPTIONS_ESOLVER is %d (Set between 1 to %d)\n",nesolver, LIS_ESOLVER_LEN);
return LIS_ERR_ILL_ARG;
}
if( niesolver < 1 || niesolver > 7 )
{
LIS_SETERR1(LIS_ERR_ILL_ARG,"Parameter LIS_EOPTIONS_INNER_ESOLVER is %d (Set between 1 to 7)\n", niesolver);
return LIS_ERR_ILL_ARG;
}
if ( esolver->options[LIS_EOPTIONS_ESOLVER] == LIS_ESOLVER_SI && niesolver > 4 )
{
LIS_SETERR1(LIS_ERR_ILL_ARG,"Parameter LIS_EOPTIONS_INNER_ESOLVER is %d (Set between 1 to 4 for Subspace)\n", niesolver);
return LIS_ERR_ILL_ARG;
}
if ( esolver->options[LIS_EOPTIONS_ESOLVER] == LIS_ESOLVER_LI && niesolver == LIS_ESOLVER_PI )
{
LIS_SETERR1(LIS_ERR_ILL_ARG,"Parameter LIS_EOPTIONS_INNER_ESOLVER is %d (Set between 2 to 7 for Lanczos)\n", niesolver);
return LIS_ERR_ILL_ARG;
}
if ( esolver->options[LIS_EOPTIONS_ESOLVER] == LIS_ESOLVER_AI && (( niesolver == LIS_ESOLVER_PI ) || ( niesolver == LIS_ESOLVER_CG) || ( niesolver == LIS_ESOLVER_JD)) )
{
LIS_SETERR1(LIS_ERR_ILL_ARG,"Parameter LIS_EOPTIONS_INNER_ESOLVER is %d (Set between 2 to 4 or 6 for Arnoldi)\n", niesolver);
return LIS_ERR_ILL_ARG;
}
if ( esolver->options[LIS_EOPTIONS_ESOLVER] == LIS_ESOLVER_SI && ss > A->gn )
{
LIS_SETERR2(LIS_ERR_ILL_ARG,"Parameter LIS_EOPTIONS_SUBSPACE is %d (Set less than or equal to matrix size %d for Subspace)\n", ss, A->gn);
return LIS_ERR_ILL_ARG;
}
if (( esolver->options[LIS_EOPTIONS_ESOLVER] == LIS_ESOLVER_LI || esolver->options[LIS_EOPTIONS_ESOLVER] == LIS_ESOLVER_AI ) && ss > A->gn )
{
LIS_SETERR2(LIS_ERR_ILL_ARG,"Parameter LIS_EOPTIONS_SUBSPACE is %d (Set less than or equal to matrix size %d for Lanczos and Arnoldi)\n", ss, A->gn);
return LIS_ERR_ILL_ARG;
}
if ( esolver->options[LIS_EOPTIONS_ESOLVER] == LIS_ESOLVER_SI && mode >= ss )
{
LIS_SETERR2(LIS_ERR_ILL_ARG,"Parameter LIS_EOPTIONS_MODE is %d (Set less than subspace size %d for Subspace)\n", mode, ss);
return LIS_ERR_ILL_ARG;
}
if ( esolver->options[LIS_EOPTIONS_ESOLVER] == ( LIS_ESOLVER_LI || LIS_ESOLVER_AI ) && mode >= ss )
{
LIS_SETERR2(LIS_ERR_ILL_ARG,"Parameter LIS_EOPTIONS_MODE is %d (Set less than subspace size %d for Lanczos or Arnoldi)\n", mode, ss);
return LIS_ERR_ILL_ARG;
}
#ifdef USE_QUAD_PRECISION
if( eprecision==LIS_PRECISION_QUAD && lis_esolver_execute_quad[nesolver]==NULL )
{
LIS_SETERR1(LIS_ERR_NOT_IMPLEMENTED,"Quad precision eigensolver %s is not implemented\n",lis_esolvername[nesolver]);
return LIS_ERR_NOT_IMPLEMENTED;
}
else if( eprecision==LIS_PRECISION_SWITCH && lis_esolver_execute_switch[nesolver]==NULL )
{
LIS_SETERR1(LIS_ERR_NOT_IMPLEMENTED,"Switch esolver %s is not implemented\n",lis_esolvername[nesolver]);
return LIS_ERR_NOT_IMPLEMENTED;
}
if( esolver->options[LIS_EOPTIONS_SWITCH_MAXITER]==-1 )
{
esolver->options[LIS_EOPTIONS_SWITCH_MAXITER] = emaxiter;
}
#endif
/* create eigenvalue array */
if( esolver->evalue ) lis_free(esolver->evalue);
evalue = (LIS_SCALAR *)lis_malloc((ss+2)*sizeof(LIS_SCALAR),"lis_esolve::evalue");
if( evalue==NULL )
{
LIS_SETERR_MEM((ss+2)*sizeof(LIS_SCALAR));
esolver->retcode = err;
return err;
}
evalue[0] = 1.0;
evalue[ss-1] = 1.0;
/* create residual norm array */
if( esolver->resid ) lis_free(esolver->resid);
resid = (LIS_SCALAR *)lis_malloc((ss+2)*sizeof(LIS_SCALAR),"lis_esolve::resid");
if( resid==NULL )
{
LIS_SETERR_MEM((ss+2)*sizeof(LIS_SCALAR));
esolver->retcode = err;
return err;
}
/* create number of iterations array */
if( esolver->iter ) lis_free(esolver->iter);
iter = (LIS_INT *)lis_malloc((ss+2)*sizeof(LIS_SCALAR),"lis_esolve::iter");
if( iter==NULL )
{
LIS_SETERR_MEM((ss+2)*sizeof(LIS_SCALAR));
esolver->retcode = err;
return err;
}
/* create quad precision number of iterations array */
if( esolver->iter2 ) lis_free(esolver->iter2);
iter2 = (LIS_INT *)lis_malloc((ss+2)*sizeof(LIS_SCALAR),"lis_esolve::iter2");
if( iter2==NULL )
{
LIS_SETERR_MEM((ss+2)*sizeof(LIS_SCALAR));
esolver->retcode = err;
return err;
}
/* create initial vector */
#ifndef USE_QUAD_PRECISION
err = lis_vector_duplicate(A,&xx);
#else
if( eprecision==LIS_PRECISION_DOUBLE )
{
err = lis_vector_duplicate(A,&xx);
}
else
{
err = lis_vector_duplicateex(LIS_PRECISION_QUAD,A,&xx);
}
#endif
if( err )
{
esolver->retcode = err;
return err;
}
if( esolver->options[LIS_EOPTIONS_INITGUESS_ONES] )
{
if( output ) lis_printf(A->comm,"initial vector x : 1\n");
#ifndef USE_QUAD_PRECISION
lis_vector_set_all(1.0,xx);
#else
if( eprecision==LIS_PRECISION_DOUBLE )
{
lis_vector_set_all(1.0,xx);
}
else
{
lis_vector_set_allex_nm(1.0,xx);
}
#endif
}
else
{
if( output ) lis_printf(A->comm,"initial vector x : user defined\n");
#ifndef USE_QUAD_PRECISION
lis_vector_copy(x,xx);
#else
if( eprecision==LIS_PRECISION_DOUBLE )
{
lis_vector_copy(x,xx);
}
else
{
lis_vector_copyex_nm(x,xx);
}
#endif
}
/* global shift */
if ( output ) if( A->my_rank==0 ) printf("shift : %e\n", gshift);
/* create eigenvector array */
if( esolver->evector ) lis_free(esolver->evector);
evector = (LIS_VECTOR *)lis_malloc((ss+2)*sizeof(LIS_VECTOR),"lis_esolve::evector");
if( evector==NULL )
{
LIS_SETERR_MEM((ss+2)*sizeof(LIS_VECTOR));
esolver->retcode = err;
return err;
}
/* create residual history array */
if( esolver->rhistory ) lis_free(esolver->rhistory);
rhistory = (LIS_SCALAR *)lis_malloc((emaxiter+2)*sizeof(LIS_SCALAR),"lis_esolve::rhistory");
if( rhistory==NULL )
{
LIS_SETERR_MEM((emaxiter+2)*sizeof(LIS_SCALAR));
lis_vector_destroy(xx);
esolver->retcode = err;
return err;
}
/* convert matrix */
if( estorage>0 && A->matrix_type!=estorage )
{
err = lis_matrix_duplicate(A,&B);
if( err ) return err;
lis_matrix_set_blocksize(B,eblock,eblock,NULL,NULL);
lis_matrix_set_type(B,estorage);
err = lis_matrix_convert(A,B);
if( err ) return err;
lis_matrix_storage_destroy(A);
lis_matrix_DLU_destroy(A);
lis_matrix_diag_destroy(A->WD);
if( A->l2g_map ) lis_free( A->l2g_map );
if( A->commtable ) lis_commtable_destroy( A->commtable );
if( A->ranges ) lis_free( A->ranges );
err = lis_matrix_copy_struct(B,A);
if( err ) return err;
lis_free(B);
}
esolver->A = A;
esolver->evalue = evalue;
esolver->x = x;
esolver->evector = evector;
rhistory[0] = 1.0;
esolver->rhistory = rhistory;
esolver->resid = resid;
esolver->iter = iter;
esolver->iter2 = iter2;
if( A->my_rank==0 )
{
#ifdef _LONG__DOUBLE
if ( output ) printf("precision : long double\n");
#else
if ( output ) printf("precision : %s\n", lis_eprecisionname[eprecision]);
#endif
#ifdef _LONG__LONG
if ( output ) printf("eigensolver : %s\n", lis_esolvername[nesolver]);
#else
if ( output ) printf("eigensolver : %s\n", lis_esolvername[nesolver]);
#endif
}
if( A->my_rank==0 )
{
#ifdef _LONG__DOUBLE
if ( output ) printf("convergence condition : ||lx-Ax||_2 <= %6.1Le * ||lx||_2\n", esolver->params[LIS_EPARAMS_RESID - LIS_EOPTIONS_LEN]);
#else
if ( output ) printf("convergence condition : ||lx-Ax||_2 <= %6.1e * ||lx||_2\n", esolver->params[LIS_EPARAMS_RESID - LIS_EOPTIONS_LEN]);
#endif
}
if( A->my_rank==0 )
{
if( A->matrix_type==LIS_MATRIX_BSR || A->matrix_type==LIS_MATRIX_BSC )
{
#ifdef _LONG__LONG
if ( output ) printf("matrix storage format : %s(%lld x %lld)\n", lis_estoragename[A->matrix_type-1],eblock,eblock);
#else
if ( output ) printf("matrix storage format : %s(%d x %d)\n", lis_estoragename[A->matrix_type-1],eblock,eblock);
#endif
}
else
{
if ( output ) printf("matrix storage format : %s\n", lis_estoragename[A->matrix_type-1]);
}
}
time = lis_wtime();
esolver->ptime = 0;
esolver->itime = 0;
esolver->p_c_time = 0;
esolver->p_i_time = 0;
if (gshift != 0.0) lis_matrix_shift_diagonal(A, gshift);
/* create work vector */
err = lis_esolver_malloc_work[nesolver](esolver);
if( err )
{
lis_vector_destroy(xx);
esolver->retcode = err;
return err;
}
esolver->x = xx;
esolver->xx = x;
/* execute esolver */
#ifndef USE_QUAD_PRECISION
err = lis_esolver_execute[nesolver](esolver);
#else
if( eprecision==LIS_PRECISION_DOUBLE )
{
err = lis_esolver_execute[nesolver](esolver);
}
else if( eprecision==LIS_PRECISION_QUAD )
{
err = lis_esolver_execute_quad[nesolver](esolver);
}
else if( eprecision==LIS_PRECISION_SWITCH )
{
err = lis_esolver_execute_switch[nesolver](esolver);
}
#endif
esolver->retcode = err;
*evalue0 = esolver->evalue[0];
lis_vector_copy(esolver->x, x);
esolver->time = lis_wtime() - time;
lis_matrix_shift_diagonal(A, -gshift);
if( A->my_rank==0 )
{
if( err )
{
#ifdef _LONG__LONG
if ( output ) printf("eigensolver status : %s(code=%lld)\n\n",lis_ereturncode[err],err);
#else
if ( output ) printf("eigensolver status : %s(code=%d)\n\n",lis_ereturncode[err],err);
#endif
}
else
{
if ( output ) printf("eigensolver status : normal end\n\n");
}
}
if( eprecision==LIS_PRECISION_DOUBLE )
{
esolver->iter2[mode] = esolver->iter[mode];
}
else if( eprecision==LIS_PRECISION_QUAD )
{
esolver->iter2[mode] = 0;
}
lis_vector_destroy(xx);
LIS_DEBUG_FUNC_OUT;
return LIS_SUCCESS;
}