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cuda : skip UMA override for HIP builds #27083

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Merged
am17an merged 1 commit into from
Aug 17, 2026
Merged

cuda : skip UMA override for HIP builds #27083

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4 changes: 2 additions & 2 deletions ggml/src/ggml-cuda/ggml-cuda.cu
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Original file line number Diff line number Diff line change
Expand Up @@ -4770,7 +4770,7 @@ static void ggml_backend_cuda_device_get_memory(ggml_backend_dev_t dev, size_t *
}

// ref: https://github.com/ggml-org/llama.cpp/pull/17368
#if defined(__linux__)
#if defined(__linux__) && !defined(GGML_USE_HIP)
// Check if this is a UMA (Unified Memory Architecture) system
cudaDeviceProp prop;
CUDA_CHECK(cudaGetDeviceProperties(&prop, ggml_cuda_get_physical_device(ctx->device)));
Expand All @@ -4790,7 +4790,7 @@ static void ggml_backend_cuda_device_get_memory(ggml_backend_dev_t dev, size_t *
GGML_LOG_ERROR("%s: /proc/meminfo reading failed, using cudaMemGetInfo\n", __func__);
}
}
#endif // defined(__linux__)
#endif // defined(__linux__) && !defined(GGML_USE_HIP)

// virtual devices sharing one physical GPU share its memory pool; split it between them
const int share_count = ggml_cuda_physical_device_share_count(ctx->device);
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