public_git
/
whisper.cpp
mirror of https://github.com/ggml-org/whisper.cpp.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

cuda : revert CUDA_SCALE_LAUNCH_QUEUES override until investigated (llama/19227) 

Hangs were reported on Jetson Orin AGX if we set CUDA_SCALE_LAUNCH_QUEUES=4x. Reverting the previous PR (#19042) and updating the document to consider setting CUDA_SCALE_LAUNCH_QUEUES=4x for faster throughput on multi-GPU systems.
This commit is contained in:
Gaurav Garg 2026-02-03 12:11:02 +05:30 committed by Georgi Gerganov
parent 591072fcc8
commit 6ec362d2e0
1 changed files with 0 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
ggml/src/ggml-cuda/ggml-cuda.cu
View File

@ -5049,16 +5049,6 @@ ggml_backend_reg_t ggml_backend_cuda_reg() {
static std::mutex mutex;
std::lock_guard<std::mutex> lock(mutex);
if (!initialized) {
// Set CUDA_SCALE_LAUNCH_QUEUES before any CUDA API call to improve multi-GPU pipeline parallelism performance
// PR: https://github.com/ggml-org/llama.cpp/pull/19042
if (getenv("CUDA_SCALE_LAUNCH_QUEUES") == nullptr) {
#ifdef _WIN32
_putenv_s("CUDA_SCALE_LAUNCH_QUEUES", "4x");
#else
setenv("CUDA_SCALE_LAUNCH_QUEUES", "4x", 0); // don't overwrite if already set
#endif // _WIN32
}
ggml_backend_cuda_reg_context * ctx = new ggml_backend_cuda_reg_context;
const int min_batch_size = getenv("GGML_OP_OFFLOAD_MIN_BATCH") ? atoi(getenv("GGML_OP_OFFLOAD_MIN_BATCH")) : 32;