diff --git a/interface/axpy.c b/interface/axpy.c
index 9032946d2..da4fee44d 100644
--- a/interface/axpy.c
+++ b/interface/axpy.c
@@ -44,7 +44,11 @@
 #if  defined(Z13)
 #define MULTI_THREAD_MINIMAL  200000
 #else
-#define MULTI_THREAD_MINIMAL  10000
+#ifdef DOUBLE
+#define MULTI_THREAD_MINIMAL  262144
+#else
+#define MULTI_THREAD_MINIMAL  524288
+#endif
 #endif
 #ifndef CBLAS
 
diff --git a/interface/zaxpy.c b/interface/zaxpy.c
index dbd559628..56b36c65d 100644
--- a/interface/zaxpy.c
+++ b/interface/zaxpy.c
@@ -44,7 +44,7 @@
 #if  defined(Z13)
 #define MULTI_THREAD_MINIMAL  200000
 #else
-#define MULTI_THREAD_MINIMAL  10000
+#define MULTI_THREAD_MINIMAL  131072
 #endif
 #ifndef CBLAS