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25911a6e6b
Support for bf16 was added in MacOS v14+ and attempting to enable on older versions causes runtime failures.
28 lines
920 B
Diff
28 lines
920 B
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Daniel Hiltgen <daniel@ollama.com>
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Date: Wed, 30 Jul 2025 08:43:46 -0700
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Subject: [PATCH] BF16 macos version guard
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Only enable BF16 on supported MacOS versions (v14+)
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---
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ggml/src/ggml-metal/ggml-metal.m | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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diff --git a/ggml/src/ggml-metal/ggml-metal.m b/ggml/src/ggml-metal/ggml-metal.m
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index 110c9ece..ab46f6e3 100644
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--- a/ggml/src/ggml-metal/ggml-metal.m
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+++ b/ggml/src/ggml-metal/ggml-metal.m
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@@ -89,7 +89,11 @@
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ctx->has_bfloat |= [ctx->mtl_device supportsFamily:MTLGPUFamilyApple6];
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#if defined(GGML_METAL_USE_BF16)
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- ctx->use_bfloat = ctx->has_bfloat;
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+ if (@available(macOS 14.0, *)) {
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+ ctx->use_bfloat = ctx->has_bfloat;
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+ } else {
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+ ctx->use_bfloat = false;
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+ }
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#else
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ctx->use_bfloat = false;
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#endif
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