From: matt23654 <redacted>
Date: Thu, 27 Nov 2025 11:35:35 +0000 (+0000)
Subject: cuda : fix UMA detection on discrete GPUs. (llama/17537)
X-Git-Tag: upstream/0.9.4.395~108
X-Git-Url: https://git.djapps.eu/?a=commitdiff_plain;h=041b41f2150f2a51bedde470d98eae96b8aa3f5b;p=pkg%2Fggml%2Fsources%2Fggml

cuda : fix UMA detection on discrete GPUs. (llama/17537)
---

diff --git a/src/ggml-cuda/ggml-cuda.cu b/src/ggml-cuda/ggml-cuda.cu
index 0b29074f..aa657076 100644
--- a/src/ggml-cuda/ggml-cuda.cu
+++ b/src/ggml-cuda/ggml-cuda.cu
@@ -3837,7 +3837,7 @@ static void ggml_backend_cuda_device_get_memory(ggml_backend_dev_t dev, size_t *
 
     // Check if UMA is explicitly enabled via environment variable
     bool uma_env = getenv("GGML_CUDA_ENABLE_UNIFIED_MEMORY") != nullptr;
-    bool is_uma = prop.unifiedAddressing > 0 || uma_env;
+    bool is_uma = prop.integrated > 0 || uma_env;
 
     if (is_uma) {
         // For UMA systems (like DGX Spark), use system memory info