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38 #include <types/simple.h>
42 F77_FUNC(strsm,STRSM)(const char * side,
54 const char xside = toupper(*side);
55 const char xuplo = toupper(*uplo);
56 const char xtrans = toupper(*transa);
57 const char xdiag = toupper(*diag);
65 float alpha = *alpha__;
71 if(fabs(alpha)<GMX_FLOAT_MIN) {
85 if(fabs(alpha-1.0)>GMX_FLOAT_EPS) {
87 b[j*(ldb)+i] *= alpha;
90 if( fabs(b[j*(ldb)+k])>GMX_FLOAT_MIN) {
92 b[j*(ldb)+k] /= a[k*(lda)+k];
94 b[j*(ldb)+i] -= b[j*(ldb)+k]*a[k*(lda)+i];
101 if(fabs(alpha-1.0)>GMX_FLOAT_EPS)
103 b[j*(ldb)+i] *= alpha;
105 if( fabs(b[j*(ldb)+k])>GMX_FLOAT_MIN) {
107 b[j*(ldb)+k] /= a[k*(lda)+k];
109 b[j*(ldb)+i] -= b[j*(ldb)+k]*a[k*(lda)+i];
120 temp = alpha * b[j*(ldb)+i];
122 temp -= a[i*(lda)+k] * b[j*(ldb)+k];
124 temp /= a[i*(lda)+i];
131 for(i=m-1;i>=0;i--) {
132 temp = alpha * b[j*(ldb)+i];
134 temp -= a[i*(lda)+k] * b[j*(ldb)+k];
136 temp /= a[i*(lda)+i];
149 if(fabs(alpha-1.0)>GMX_FLOAT_EPS)
151 b[j*(ldb)+i] *= alpha;
153 if( fabs(a[j*(lda)+k])>GMX_FLOAT_MIN) {
155 b[j*(ldb)+i] -= a[j*(lda)+k]*b[k*(ldb)+i];
159 temp = 1.0/a[j*(lda)+j];
161 b[j*(ldb)+i] *= temp;
166 for(j=n-1;j>=0;j--) {
167 if(fabs(alpha-1.0)>GMX_FLOAT_EPS)
169 b[j*(ldb)+i] *= alpha;
171 if( fabs(a[j*(lda)+k])>GMX_FLOAT_MIN ) {
173 b[j*(ldb)+i] -= a[j*(lda)+k]*b[k*(ldb)+i];
177 temp = 1.0/a[j*(lda)+j];
179 b[j*(ldb)+i] *= temp;
187 for(k=n-1;k>=0;k--) {
189 temp = 1.0/a[k*(lda)+k];
191 b[k*(ldb)+i] *= temp;
194 if( fabs(a[k*(lda)+j])>GMX_FLOAT_MIN) {
197 b[j*(ldb)+i] -= temp * b[k*(ldb)+i];
200 if(fabs(alpha-1.0)>GMX_FLOAT_EPS)
202 b[k*(ldb)+i] *= alpha;
208 temp = 1.0/a[k*(lda)+k];
210 b[k*(ldb)+i] *= temp;
213 if( fabs(a[k*(lda)+j])>GMX_FLOAT_MIN) {
216 b[j*(ldb)+i] -= temp * b[k*(ldb)+i];
219 if(fabs(alpha-1.0)>GMX_FLOAT_EPS)
221 b[k*(ldb)+i] *= alpha;