re-arrange new code for readability
#include "functable.h"
#endif
+// this is smallest dimension N of square input a to permit threading
+// see graph in issue #1820 for explanation
+#define MULTI_THREAD_MINIMAL 362
+
#ifdef XDOUBLE
#define ERROR_NAME "XHEMV "
#elif defined(DOUBLE)
@@ -195,8 +199,7 @@ void CNAME(enum CBLAS_ORDER order, enum CBLAS_UPLO Uplo, blasint n, void *VALPHA
buffer = (FLOAT *)blas_memory_alloc(1);
#ifdef SMP
- // see graph in issue #1820 for explanation and room for improvement
- if (n<362) {
+ if (n<MULTI_THREAD_MINIMAL) {
nthreads = 1 ;
} else {
nthreads = num_cpu_avail(2);
