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38 #include <types/simple.h>
43 F77_FUNC(dgemm,DGEMM)(const char *transa,
57 const char tra=toupper(*transa);
58 const char trb=toupper(*transb);
61 int nrowa,ncola,nrowb;
70 double alpha = *alpha__;
71 double beta = *beta__;
86 if(m==0 || n==0 || (( fabs(alpha)<GMX_DOUBLE_MIN || k==0) && fabs(beta-1.0)<GMX_DOUBLE_EPS))
89 if(fabs(alpha)<GMX_DOUBLE_MIN) {
90 if(fabs(beta)<GMX_DOUBLE_MIN) {
107 if(fabs(beta)<GMX_DOUBLE_MIN) {
110 } else if(fabs(beta-1.0)>GMX_DOUBLE_EPS) {
112 c[j*(ldc)+i] *= beta;
115 if( fabs(b[ j*(ldb) + l ])>GMX_DOUBLE_MIN) {
116 temp = alpha * b[ j*(ldb) + l ];
118 c[j*(ldc)+i] += temp * a[l*(lda)+i];
123 /* transpose A, but not B */
128 temp += a[i*(lda)+l] * b[j*(ldb)+l];
129 if(fabs(beta)<GMX_DOUBLE_MIN)
130 c[j*(ldc)+i] = alpha * temp;
132 c[j*(ldc)+i] = alpha * temp + beta * c[j*(ldc)+i];
140 /* transpose B, but not A */
143 if(fabs(beta)<GMX_DOUBLE_MIN) {
146 } else if(fabs(beta-1.0)>GMX_DOUBLE_EPS) {
148 c[j*(ldc)+i] *= beta;
151 if( fabs(b[ l*(ldb) + j ])>GMX_DOUBLE_MIN) {
152 temp = alpha * b[ l*(ldb) + j ];
154 c[j*(ldc)+i] += temp * a[l*(lda)+i];
160 /* Transpose both A and B */
165 temp += a[i*(lda)+l] * b[l*(ldb)+j];
166 if(fabs(beta)<GMX_DOUBLE_MIN)
167 c[j*(ldc)+i] = alpha * temp;
169 c[j*(ldc)+i] = alpha * temp + beta * c[j*(ldc)+i];