mult_at_b_real: Performs C : = A**T * B this is the old, deprecated interface for the newer elpa_mult_at_b_real where A is a square matrix (na,na) which is optionally upper or lower triangular B is a (na,ncb) matrix C is a (na,ncb) matrix where optionally only the upper or lower triangle may be computed
More...
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| logical function | elpa_mult_at_b_real (uplo_a, uplo_c, na, ncb, a, lda, b, ldb, nblk, mpi_comm_rows, mpi_comm_cols, c, ldc) |
| | elpa_mult_at_b_real: Performs C : = A**T * B where A is a square matrix (na,na) which is optionally upper or lower triangular B is a (na,ncb) matrix C is a (na,ncb) matrix where optionally only the upper or lower triangle may be computed More...
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mult_at_b_real: Performs C : = A**T * B this is the old, deprecated interface for the newer elpa_mult_at_b_real where A is a square matrix (na,na) which is optionally upper or lower triangular B is a (na,ncb) matrix C is a (na,ncb) matrix where optionally only the upper or lower triangle may be computed
- Parameters
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| uplo_a | 'U' if A is upper triangular 'L' if A is lower triangular anything else if A is a full matrix Please note: This pertains to the original A (as set in the calling program) whereas the transpose of A is used for calculations If uplo_a is 'U' or 'L', the other triangle is not used at all, i.e. it may contain arbitrary numbers |
| uplo_c | 'U' if only the upper diagonal part of C is needed 'L' if only the upper diagonal part of C is needed anything else if the full matrix C is needed Please note: Even when uplo_c is 'U' or 'L', the other triangle may be written to a certain extent, i.e. one shouldn't rely on the content there! |
| na | Number of rows/columns of A, number of rows of B and C |
| ncb | Number of columns of B and C |
| a | matrix a |
| lda | leading dimension of matrix a |
| b | matrix b |
| ldb | leading dimension of matrix b |
| nblk | blocksize of cyclic distribution, must be the same in both directions! |
| mpi_comm_rows | MPI communicator for rows |
| mpi_comm_cols | MPI communicator for columns |
| c | matrix c |
| ldc | leading dimension of matrix c |
| logical function elpa1_auxiliary::mult_at_b_real::elpa_mult_at_b_real |
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character*1 |
uplo_a, |
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character*1 |
uplo_c, |
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integer(kind=ik) |
na, |
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integer(kind=ik) |
ncb, |
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real(kind=rk), dimension(lda,*) |
a, |
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integer(kind=ik) |
lda, |
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real(kind=rk), dimension(ldb,*) |
b, |
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integer(kind=ik) |
ldb, |
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integer(kind=ik) |
nblk, |
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integer(kind=ik) |
mpi_comm_rows, |
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integer(kind=ik) |
mpi_comm_cols, |
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real(kind=rk), dimension(ldc,*) |
c, |
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integer(kind=ik) |
ldc |
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) |
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private |
elpa_mult_at_b_real: Performs C : = A**T * B where A is a square matrix (na,na) which is optionally upper or lower triangular B is a (na,ncb) matrix C is a (na,ncb) matrix where optionally only the upper or lower triangle may be computed
- Parameters
-
| uplo_a | 'U' if A is upper triangular 'L' if A is lower triangular anything else if A is a full matrix Please note: This pertains to the original A (as set in the calling program) whereas the transpose of A is used for calculations If uplo_a is 'U' or 'L', the other triangle is not used at all, i.e. it may contain arbitrary numbers |
| uplo_c | 'U' if only the upper diagonal part of C is needed 'L' if only the upper diagonal part of C is needed anything else if the full matrix C is needed Please note: Even when uplo_c is 'U' or 'L', the other triangle may be written to a certain extent, i.e. one shouldn't rely on the content there! |
| na | Number of rows/columns of A, number of rows of B and C |
| ncb | Number of columns of B and C |
| a | matrix a |
| lda | leading dimension of matrix a |
| b | matrix b |
| ldb | leading dimension of matrix b |
| nblk | blocksize of cyclic distribution, must be the same in both directions! |
| mpi_comm_rows | MPI communicator for rows |
| mpi_comm_cols | MPI communicator for columns |
| c | matrix c |
| ldc | leading dimension of matrix c |
- Returns
- success logical reports success or failure
The documentation for this interface was generated from the following file:
1.8.11
