gentoo-full-overlay/sci-libs/libsvm/files/3.1-openmp.patch

36 lines
1.1 KiB
Diff

--- svm.cpp.orig 2011-03-08 08:25:57.000000000 -0500
+++ svm.cpp 2011-04-25 18:07:09.000000000 -0400
@@ -1267,6 +1267,9 @@ public:
int start, j;
if((start = cache->get_data(i,&data,len)) < len)
{
+#ifdef OPENMP
+#pragma omp parallel for private(j)
+#endif
for(j=start;j<len;j++)
data[j] = (Qfloat)(y[i]*y[j]*(this->*kernel_function)(i,j));
}
@@ -2445,8 +2448,11 @@ double svm_predict_values(const svm_mode
model->param.svm_type == NU_SVR)
{
double *sv_coef = model->sv_coef[0];
- double sum = 0;
- for(int i=0;i<model->l;i++)
+ double sum = 0; int i;
+#ifdef OPENMP
+#pragma omp parallel for private(i) reduction(+:sum)
+#endif
+ for(i=0;i<model->l;i++)
sum += sv_coef[i] * Kernel::k_function(x,model->SV[i],model->param);
sum -= model->rho[0];
*dec_values = sum;
@@ -2463,6 +2469,9 @@ double svm_predict_values(const svm_mode
int l = model->l;
double *kvalue = Malloc(double,l);
+#ifdef OPENMP
+#pragma omp parallel for private(i)
+#endif
for(i=0;i<l;i++)
kvalue[i] = Kernel::k_function(x,model->SV[i],model->param);