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109 lines
2.2 KiB
C
109 lines
2.2 KiB
C
/* Generated from qmckl_dgemm.org */
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#include <cblas.h>
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struct dgemm_args {
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double alpha;
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double beta;
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double* A;
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double* B;
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double* C;
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int m;
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int n;
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int k;
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int lda;
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int ldb;
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int ldc;
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CBLAS_LAYOUT transa;
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CBLAS_LAYOUT transb;
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};
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#define MIN_SIZE 512
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#include<stdio.h>
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static void qmckl_dgemm_rec(struct dgemm_args args) {
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// printf("%5d %5d\n", args.m, args.n);
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if ( (args.m <= MIN_SIZE) || (args.n <= MIN_SIZE)) {
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cblas_dgemm(CblasColMajor, args.transa, args.transb,
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args.m, args.n, args.k, args.alpha,
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args.A, args.lda, args.B, args.ldb,
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args.beta, args.C, args.ldc);
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} else {
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int m1 = args.m / 2;
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int m2 = args.m - m1;
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int n1 = args.n / 2;
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int n2 = args.n - n1;
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struct dgemm_args args_1 = args;
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args_1.m = m1;
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args_1.n = n1;
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qmckl_dgemm_rec(args_1);
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// TODO: assuming 'N', 'N' here
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struct dgemm_args args_2 = args;
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args_2.B = args.B + args.ldb*n1;
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args_2.C = args.C + args.ldc*n1;
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args_2.m = m1;
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args_2.n = n2;
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qmckl_dgemm_rec(args_2);
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struct dgemm_args args_3 = args;
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args_3.A = args.A + m1;
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args_3.C = args.C + m1;
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args_3.m = m2;
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args_3.n = n1;
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qmckl_dgemm_rec(args_3);
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struct dgemm_args args_4 = args;
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args_4.A = args.A + m1;
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args_4.B = args.B + args.ldb*n1;
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args_4.C = args.C + m1 + args.ldc*n1;
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args_4.m = m2;
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args_4.n = n2;
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qmckl_dgemm_rec(args_4);
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}
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}
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void qmckl_dgemm(char transa, char transb,
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int m, int n, int k,
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double alpha,
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double* A, int lda,
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double* B, int ldb,
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double beta,
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double* C, int ldc)
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{
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struct dgemm_args args;
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args.alpha = alpha;
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args.beta = beta ;
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args.A = A;
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args.B = B;
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args.C = C;
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args.m = m;
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args.n = n;
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args.k = k;
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args.lda = lda;
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args.ldb = ldb;
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args.ldc = ldc;
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if (transa == 'T' || transa == 't') {
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args.transa = CblasTrans;
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} else {
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args.transa = CblasNoTrans;
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}
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CBLAS_LAYOUT tb;
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if (transa == 'T' || transa == 't') {
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args.transb = CblasTrans;
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} else {
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args.transb = CblasNoTrans;
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}
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qmckl_dgemm_rec(args);
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}
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