vbatts/llama.cpp
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ggml-backend : only offload from host buffers (#11120)

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Diego Devesa 2025-01-07 12:38:05 +01:00 • committed by GitHub
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ggml/src/ggml-backend.cpp
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@ -761,7 +761,7 @@ static int ggml_backend_sched_backend_id_from_cur(ggml_backend_sched_t sched, st
} }
// skip ROPE since the rope freqs tensor is too small to choose a backend based on it // skip ROPE since the rope freqs tensor is too small to choose a backend based on it
// not an ideal solution // not an ideal solution
if (tensor->op != GGML_OP_ROPE && src->buffer != NULL && src->buffer->usage == GGML_BACKEND_BUFFER_USAGE_WEIGHTS) { if (tensor->op != GGML_OP_ROPE && src->buffer != NULL && src->buffer->usage == GGML_BACKEND_BUFFER_USAGE_WEIGHTS && ggml_backend_buffer_is_host(src->buffer)) {
int src_backend_id = ggml_backend_sched_backend_from_buffer(sched, src, tensor); int src_backend_id = ggml_backend_sched_backend_from_buffer(sched, src, tensor);
// check if a backend with higher prio wants to offload the op // check if a backend with higher prio wants to offload the op
if (src_backend_id == sched->n_backends - 1) { if (src_backend_id == sched->n_backends - 1) {