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mpt: use buf in model struct (thread safety)

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Aaron Miller 2023-05-15 17:11:07 -07:00 committed by AT
parent 75c212ec0d
commit 0c9b7a6ae8
1 changed files with 10 additions and 11 deletions
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21
gpt4all-backend/mpt.cpp
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@ -469,26 +469,25 @@ bool mpt_eval(
const int d_key = n_embd/n_head; const int d_key = n_embd/n_head;
static size_t buf_size = 256u*1024*1024; static size_t buf_size = 1024u*MB;
static void * buf = malloc(buf_size); if (!model.buf.addr || model.buf.size < buf_size)
model.buf.resize(buf_size);
if (mem_per_token > 0 && mem_per_token*N > buf_size) { if (mem_per_token > 0 && mem_per_token*N > model.buf.size) {
const size_t buf_size_new = 1.1*(mem_per_token*N); // add 10% to account for ggml object overhead const size_t buf_size_new = 1.1*(mem_per_token*N); // add 10% to account for ggml object overhead
//printf("\n%s: reallocating buffer from %zu to %zu bytes\n", __func__, buf_size, buf_size_new); // printf("\n%s: reallocating buffer from %zu to %zu bytes\n", __func__, model.buf.size, buf_size_new);
// reallocate // reallocate
buf_size = buf_size_new; model.buf.resize(buf_size_new);
buf = realloc(buf, buf_size); if (model.buf.addr == nullptr) {
if (buf == nullptr) { fprintf(stderr, "%s: failed to allocate %zu bytes\n", __func__, model.buf.size);
fprintf(stderr, "%s: failed to allocate %zu bytes\n", __func__, buf_size);
return false; return false;
} }
} }
struct ggml_init_params params = { struct ggml_init_params params = {
.mem_size = buf_size, .mem_size = model.buf.size,
.mem_buffer = buf, .mem_buffer = model.buf.addr,
.no_alloc = false,
}; };
struct ggml_context * ctx0 = ggml_init(params); struct ggml_context * ctx0 = ggml_init(params);