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Avoid allocating the transposed triangular matrix (Reference-LAPACK PR382)

This commit is contained in:
Martin Kroeker 2021-05-02 12:18:17 +02:00 committed by GitHub
parent 3a30c12019
commit 4bf00da8fb
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 80 additions and 74 deletions
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39
lapack-netlib/LAPACKE/src/lapacke_clantr_work.c
View File

@ -41,45 +41,46 @@ float LAPACKE_clantr_work( int matrix_layout, char norm, char uplo,
lapack_int info = 0;
float res = 0.;
if( matrix_layout == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
/* Call LAPACK function */
res = LAPACK_clantr( &norm, &uplo, &diag, &m, &n, a, &lda, work );
} else if( matrix_layout == LAPACK_ROW_MAJOR ) {
lapack_int lda_t = MAX(1,m);
lapack_complex_float* a_t = NULL;
float* work_lapack = NULL;
char norm_lapack;
char uplo_lapack;
/* Check leading dimension(s) */
if( lda < n ) {
info = -8;
LAPACKE_xerbla( "LAPACKE_clantr_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
a_t = (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,MAX(m,n)) );
if( a_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
if( LAPACKE_lsame( norm, '1' ) || LAPACKE_lsame( norm, 'o' ) ) {
norm_lapack = 'i';
} else if( LAPACKE_lsame( norm, 'i' ) ) {
norm_lapack = '1';
} else {
norm_lapack = norm;
}
if( LAPACKE_lsame( uplo, 'u' ) ) {
uplo_lapack = 'l';
} else {
uplo_lapack = 'u';
}
/* Allocate memory for work array(s) */
if( LAPACKE_lsame( norm, 'i' ) ) {
work_lapack = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,m) );
if( LAPACKE_lsame( norm_lapack, 'i' ) ) {
work_lapack = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) );
if( work_lapack == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_1;
goto exit_level_0;
}
}
/* Transpose input matrices */
LAPACKE_ctr_trans( matrix_layout, uplo, diag, MAX(m,n), a, lda, a_t, lda_t );
/* Call LAPACK function and adjust info */
res = LAPACK_clantr( &norm, &uplo, &diag, &m, &n, a_t, &lda_t, work_lapack );
/* Call LAPACK function */
res = LAPACK_clantr( &norm_lapack, &uplo_lapack, &diag, &n, &m, a, &lda, work_lapack );
/* Release memory and exit */
if( work_lapack ) {
LAPACKE_free( work_lapack );
}
exit_level_1:
LAPACKE_free( a_t );
exit_level_0:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
if( info == LAPACK_WORK_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_clantr_work", info );
}
} else {

38
lapack-netlib/LAPACKE/src/lapacke_dlantr_work.c
View File

@ -40,44 +40,46 @@ double LAPACKE_dlantr_work( int matrix_layout, char norm, char uplo,
lapack_int info = 0;
double res = 0.;
if( matrix_layout == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
/* Call LAPACK function */
res = LAPACK_dlantr( &norm, &uplo, &diag, &m, &n, a, &lda, work );
} else if( matrix_layout == LAPACK_ROW_MAJOR ) {
lapack_int lda_t = MAX(1,m);
double* a_t = NULL;
double* work_lapack = NULL;
char norm_lapack;
char uplo_lapack;
/* Check leading dimension(s) */
if( lda < n ) {
info = -8;
LAPACKE_xerbla( "LAPACKE_dlantr_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,MAX(m,n)) );
if( a_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
if( LAPACKE_lsame( norm, '1' ) || LAPACKE_lsame( norm, 'o' ) ) {
norm_lapack = 'i';
} else if( LAPACKE_lsame( norm, 'i' ) ) {
norm_lapack = '1';
} else {
norm_lapack = norm;
}
if( LAPACKE_lsame( uplo, 'u' ) ) {
uplo_lapack = 'l';
} else {
uplo_lapack = 'u';
}
/* Allocate memory for work array(s) */
if( LAPACKE_lsame( norm, 'i' ) ) {
work_lapack = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,m) );
if( LAPACKE_lsame( norm_lapack, 'i' ) ) {
work_lapack = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) );
if( work_lapack == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_1;
goto exit_level_0;
}
}
/* Transpose input matrices */
LAPACKE_dtr_trans( matrix_layout, uplo, diag, MAX(m,n), a, lda, a_t, lda_t );
/* Call LAPACK function and adjust info */
res = LAPACK_dlantr( &norm, &uplo, &diag, &m, &n, a_t, &lda_t, work_lapack );
/* Call LAPACK function */
res = LAPACK_dlantr( &norm_lapack, &uplo_lapack, &diag, &n, &m, a, &lda, work_lapack );
/* Release memory and exit */
if( work_lapack ) {
LAPACKE_free( work_lapack );
}
exit_level_1:
LAPACKE_free( a_t );
exit_level_0:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
if( info == LAPACK_WORK_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_dlantr_work", info );
}
} else {

38
lapack-netlib/LAPACKE/src/lapacke_slantr_work.c
View File

@ -40,44 +40,46 @@ float LAPACKE_slantr_work( int matrix_layout, char norm, char uplo,
lapack_int info = 0;
float res = 0.;
if( matrix_layout == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
/* Call LAPACK function */
res = LAPACK_slantr( &norm, &uplo, &diag, &m, &n, a, &lda, work );
} else if( matrix_layout == LAPACK_ROW_MAJOR ) {
lapack_int lda_t = MAX(1,m);
float* a_t = NULL;
float* work_lapack = NULL;
char norm_lapack;
char uplo_lapack;
/* Check leading dimension(s) */
if( lda < n ) {
info = -8;
LAPACKE_xerbla( "LAPACKE_slantr_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,MAX(m,n)) );
if( a_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
if( LAPACKE_lsame( norm, '1' ) || LAPACKE_lsame( norm, 'o' ) ) {
norm_lapack = 'i';
} else if( LAPACKE_lsame( norm, 'i' ) ) {
norm_lapack = '1';
} else {
norm_lapack = norm;
}
if( LAPACKE_lsame( uplo, 'u' ) ) {
uplo_lapack = 'l';
} else {
uplo_lapack = 'u';
}
/* Allocate memory for work array(s) */
if( LAPACKE_lsame( norm, 'i' ) ) {
work_lapack = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,m) );
if( LAPACKE_lsame( norm_lapack, 'i' ) ) {
work_lapack = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) );
if( work_lapack == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_1;
goto exit_level_0;
}
}
/* Transpose input matrices */
LAPACKE_str_trans( matrix_layout, uplo, diag, MAX(m,n), a, lda, a_t, lda_t );
/* Call LAPACK function and adjust info */
res = LAPACK_slantr( &norm, &uplo, &diag, &m, &n, a_t, &lda_t, work_lapack );
/* Call LAPACK function */
res = LAPACK_slantr( &norm_lapack, &uplo_lapack, &diag, &n, &m, a, &lda, work_lapack );
/* Release memory and exit */
if( work_lapack ) {
LAPACKE_free( work_lapack );
}
exit_level_1:
LAPACKE_free( a_t );
exit_level_0:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
if( info == LAPACK_WORK_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_slantr_work", info );
}
} else {

39
lapack-netlib/LAPACKE/src/lapacke_zlantr_work.c
View File

@ -41,45 +41,46 @@ double LAPACKE_zlantr_work( int matrix_layout, char norm, char uplo,
lapack_int info = 0;
double res = 0.;
if( matrix_layout == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
/* Call LAPACK function */
res = LAPACK_zlantr( &norm, &uplo, &diag, &m, &n, a, &lda, work );
} else if( matrix_layout == LAPACK_ROW_MAJOR ) {
lapack_int lda_t = MAX(1,m);
lapack_complex_double* a_t = NULL;
double* work_lapack = NULL;
char norm_lapack;
char uplo_lapack;
/* Check leading dimension(s) */
if( lda < n ) {
info = -8;
LAPACKE_xerbla( "LAPACKE_zlantr_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
a_t = (lapack_complex_double*)
LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,MAX(m,n)) );
if( a_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
if( LAPACKE_lsame( norm, '1' ) || LAPACKE_lsame( norm, 'o' ) ) {
norm_lapack = 'i';
} else if( LAPACKE_lsame( norm, 'i' ) ) {
norm_lapack = '1';
} else {
norm_lapack = norm;
}
if( LAPACKE_lsame( uplo, 'u' ) ) {
uplo_lapack = 'l';
} else {
uplo_lapack = 'u';
}
/* Allocate memory for work array(s) */
if( LAPACKE_lsame( norm, 'i' ) ) {
work_lapack = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,m) );
if( LAPACKE_lsame( norm_lapack, 'i' ) ) {
work_lapack = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) );
if( work_lapack == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_1;
goto exit_level_0;
}
}
/* Transpose input matrices */
LAPACKE_ztr_trans( matrix_layout, uplo, diag, MAX(m,n), a, lda, a_t, lda_t );
/* Call LAPACK function and adjust info */
res = LAPACK_zlantr( &norm, &uplo, &diag, &m, &n, a_t, &lda_t, work_lapack );
/* Call LAPACK function */
res = LAPACK_zlantr( &norm_lapack, &uplo_lapack, &diag, &n, &m, a, &lda, work_lapack );
/* Release memory and exit */
if( work_lapack ) {
LAPACKE_free( work_lapack );
}
exit_level_1:
LAPACKE_free( a_t );
exit_level_0:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
if( info == LAPACK_WORK_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_zlantr_work", info );
}
} else {