Introduce a (crude) threshold to multithreading

2025-07-25 15:15:46 +02:00
parent b4c2b34a45
commit a9e8fa06bf
1 changed files with 4 additions and 1 deletions
@@ -219,7 +219,10 @@ void CNAME(enum CBLAS_ORDER order, enum CBLAS_UPLO Uplo,

 #ifdef SMP
  nthreads = num_cpu_avail(2);
-
+  
+  if (n < 50 ) nthreads = 1;
+  if (nthreads > 2 && n < 500) nthreads = 2;
+	
  if (nthreads == 1) {
 #endif