From: Georgi Gerganov <redacted>
Date: Mon, 30 Jun 2025 14:04:05 +0000 (+0300)
Subject: metal : disable fast-math for some cpy kernels (llama/14460)
X-Git-Tag: upstream/0.0.2309~60
X-Git-Url: https://git.djapps.eu/?a=commitdiff_plain;h=7213150b82f4477f84e98ac18256e8007fb6c7b8;p=pkg%2Fggml%2Fsources%2Fggml

metal : disable fast-math for some cpy kernels (llama/14460)

* metal : disable fast-math for some cpy kernels

ggml-ci

* cont : disable for q4_1

ggml-ci

* cont : disable for iq4_nl

ggml-ci
---

diff --git a/src/ggml-metal/ggml-metal.metal b/src/ggml-metal/ggml-metal.metal
index fc3cfe35..dac45c7a 100644
--- a/src/ggml-metal/ggml-metal.metal
+++ b/src/ggml-metal/ggml-metal.metal
@@ -138,6 +138,7 @@ void quantize_q4_0(device const float * src, device block_q4_0 & dst) {
 }
 
 void quantize_q4_1(device const float * src, device block_q4_1 & dst) {
+#pragma METAL fp math_mode(safe)
     float min = FLT_MAX;
     float max = -FLT_MAX;
 
@@ -203,6 +204,7 @@ void quantize_q5_0(device const float * src, device block_q5_0 & dst) {
 }
 
 void quantize_q5_1(device const float * src, device block_q5_1 & dst) {
+#pragma METAL fp math_mode(safe)
     float max = src[0];
     float min = src[0];
 
@@ -239,6 +241,7 @@ void quantize_q5_1(device const float * src, device block_q5_1 & dst) {
 }
 
 void quantize_iq4_nl(device const float * src, device block_iq4_nl & dst) {
+#pragma METAL fp math_mode(safe)
     float amax = 0.0f; // absolute max
     float max  = 0.0f;