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disable for multi-gpu and batch size > 1

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This commit is contained in:
Alan Gray 2024-04-22 09:01:44 -07:00
parent 800f4fe48e
commit c2691d968a
1 changed files with 8 additions and 0 deletions
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8
ggml-cuda.cu
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@ -2436,6 +2436,11 @@ GGML_CALL static enum ggml_status ggml_backend_cuda_graph_compute(ggml_backend_t
// pointer to CUDA cpy kernel, which is required to identify
// kernel parameters which need updated in the graph for each token
void* ggmlCudaCpyFn = nullptr;
if(ggml_backend_cuda_get_device_count() > 1){
useCudaGraph = false; // disable CUDA graphs for multi-gpu for now. TO DO investigate
}
if(useCudaGraph) {
if(cudaGraph.instance == nullptr) cudaGraphUpdateRequired=true;
@ -2447,6 +2452,9 @@ GGML_CALL static enum ggml_status ggml_backend_cuda_graph_compute(ggml_backend_t
// Identify if the graph needs updated for this token due to the number of elements changing
// (identified by inspecting soft max op parameters)
if(node->op == GGML_OP_SOFT_MAX) {
if(node->src[1]->ne[1] > 1){
useCudaGraph = false; // disable CUDA graphs for batch size > 1 for now. TO DO investigate
}
if(node->src[0]->ne[0] != cudaGraph.softmax_ne0) {
cudaGraphUpdateRequired = true;
cudaGraph.softmax_ne0 = node->src[0]->ne[0];