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Fixed DGEMM

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This commit is contained in:
Anthony Scemama 2021-10-14 21:53:00 +02:00
parent b3e3b0b6dc
commit 1a713455f8
1 changed files with 21 additions and 8 deletions
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29
org/qmckl_blas.org
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@ -23,7 +23,8 @@ int main() {
** ~qmckl_dgemm~
Matrix multiply l$C_{ij} = \beta C_{ij} + \alpha \sum_{k} A_{ik} \cdot B_{kj}$ using Fortran ~matmul~ function.
Matrix multiply: $C_{ij} = \beta C_{ij} + \alpha \sum_{k} A_{ik} \cdot B_{kj}$ using Fortran ~matmul~ function.
TODO: Add description about the external library dependence.
#+NAME: qmckl_dgemm_args
@ -41,7 +42,7 @@ int main() {
| double | beta | in | Array containing the $n \times m$ matrix $B$ |
| double | C[][ldc] | out | Array containing the $n \times m$ matrix $B$ |
| int64_t | ldc | in | Leading dimension of array ~B~ |
*** Requirements
- ~context~ is not ~QMCKL_NULL_CONTEXT~
@ -75,7 +76,7 @@ int main() {
const int64_t ldb,
const double beta,
double* const C,
const int64_t ldc );
const int64_t ldc );
#+END_src
@ -161,11 +162,23 @@ integer function qmckl_dgemm_f(context, TransA, TransB, m, n, k, alpha, A, LDA,
endif
if (TransA) then
C = matmul(AT,B)
if (alpha == 1.d0 && beta == 0.d0) then
C = matmul(AT,B)
else
C = beta*C + alpha*matmul(AT,B)
endif
else if (TransB) then
C = matmul(A,BT)
if (alpha == 1.d0 && beta == 0.d0) then
C = matmul(A,BT)
else
C = beta*C + alpha*matmul(A,BT)
endif
else
C = matmul(A,B)
if (alpha == 1.d0 && beta == 0.d0) then
C = matmul(A,B)
else
C = beta*C + alpha*matmul(A,B)
endif
endif
end function qmckl_dgemm_f
#+end_src
@ -251,7 +264,7 @@ integer(qmckl_exit_code) function test_qmckl_dgemm(context) bind(C)
double precision :: x, alpha, beta
TransA = .False.
TransB = .False.
TransB = .False.
m = 1_8
k = 4_8
n = 6_8
@ -302,7 +315,7 @@ integer(qmckl_exit_code) function test_qmckl_dgemm(context) bind(C)
deallocate(A,B,C,D)
end function test_qmckl_dgemm
#+end_src
#+begin_src c :comments link :tangle (eval c_test)
qmckl_exit_code test_qmckl_dgemm(qmckl_context context);
assert(QMCKL_SUCCESS == test_qmckl_dgemm(context));