From 8e7e14b6aa4b51c65b5d2f916bc2b0f8bf7b5a4b Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Tue, 11 Jun 2024 15:17:20 +0200
Subject: [PATCH] avoid setting nthreads higher than available

---
 kernel/x86_64/tobf16.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/x86_64/tobf16.c b/kernel/x86_64/tobf16.c
index a88fdcc2e..6547f2522 100644
--- a/kernel/x86_64/tobf16.c
+++ b/kernel/x86_64/tobf16.c
@@ -135,7 +135,7 @@ void CNAME(BLASLONG n, FLOAT_TYPE * in, BLASLONG inc_in, bfloat16 * out, BLASLON
     if (n <= 0)  return;
 
 #if defined(SMP)
-    int nthreads;
+    int nthreads = blas_cpu_number(1);
     FLOAT_TYPE dummy_alpha;
     FLOAT_TYPE dummy_c;
 #endif
@@ -145,9 +145,9 @@ void CNAME(BLASLONG n, FLOAT_TYPE * in, BLASLONG inc_in, bfloat16 * out, BLASLON
         nthreads = 1;
     } else {
         if (n/100000 < 100) {
-            nthreads = 4;
+            nthreads = MAX(nthreads,4);
         } else {
-            nthreads = 16;
+            nthreads = MAX(nthreads,16);
         }
     }