ikawrakow/ik_llama.cpp
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Be able to enable or disable P2P via command line argument (#1058)

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Co-authored-by: Iwan Kawrakow <iwan.kawrakow@gmail.com>
This commit is contained in:
Kawrakow
2025-12-12 13:36:42 +01:00
committed by GitHub
parent 0698501ae2
commit b74fb479af
1 changed files with 9 additions and 1 deletions
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10
ggml/src/ggml-cuda.cu
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@@ -4262,6 +4262,7 @@ struct cuda_params {
#else
bool use_cuda_graph = false;
#endif
bool enable_p2p = true;
};
static std::vector<std::string> string_split(const std::string& str, const std::string& delimiter) {
@@ -4308,6 +4309,9 @@ static cuda_params ggml_cuda_parse_params(const char * params_string) {
else if (parsed[0] == "mmq-id-size") {
is_good = read_value(parsed[1], params.mmq_id_thresh);
}
else if (parsed[0] == "enable-p2p") {
is_good = read_value(parsed[1], params.enable_p2p);
}
#ifdef USE_CUDA_GRAPH
else if (parsed[0] == "graphs") {
is_good = read_value(parsed[1], params.use_cuda_graph);
@@ -4339,6 +4343,7 @@ GGML_CALL ggml_backend_t ggml_backend_cuda_init(int device, [[maybe_unused]] con
/* .context = */ ctx
};
bool enable_p2p = true;
if (param_string) {
[[maybe_unused]] auto params = ggml_cuda_parse_params((const char *)param_string);
if (params.fusion != ctx->fusion) {
@@ -4353,6 +4358,7 @@ GGML_CALL ggml_backend_t ggml_backend_cuda_init(int device, [[maybe_unused]] con
GGML_CUDA_LOG_INFO(" =========================== %s: setting mmq_id_thresh to %d\n", __func__, params.mmq_id_thresh);
ctx->mmq_id_thresh = params.mmq_id_thresh;
}
enable_p2p = params.enable_p2p;
#ifdef USE_CUDA_GRAPH
if (params.use_cuda_graph != ctx->use_cuda_graph) {
GGML_CUDA_LOG_INFO(" =========================== %s: setting use_cuda_graph to %d\n", __func__, params.use_cuda_graph);
@@ -4362,7 +4368,9 @@ GGML_CALL ggml_backend_t ggml_backend_cuda_init(int device, [[maybe_unused]] con
}
#if !defined(GGML_CUDA_NO_PEER_COPY)
ggml_cuda_set_peer_access(device);
if (enable_p2p) {
ggml_cuda_set_peer_access(device);
}
#endif
return cuda_backend;