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-rw-r--r--main.cpp13
1 files changed, 7 insertions, 6 deletions
diff --git a/main.cpp b/main.cpp
index e8e8df8..024b7e8 100644
--- a/main.cpp
+++ b/main.cpp
@@ -86,7 +86,7 @@ struct llama_model {
};
// load the model's weights from a file
-bool llama_model_load(const std::string & fname, llama_model & model, gpt_vocab & vocab, int n_ctx) {
+bool llama_model_load(const std::string & fname, llama_model & model, gpt_vocab & vocab, int n_ctx, ggml_type memory_type = GGML_TYPE_F32) {
fprintf(stderr, "%s: loading model from '%s' - please wait ...\n", __func__, fname.c_str());
std::vector<char> f_buf(1024*1024);
@@ -207,8 +207,8 @@ bool llama_model_load(const std::string & fname, llama_model & model, gpt_vocab
ctx_size += n_layer*(n_ff*n_embd*ggml_type_sizef(wtype)); // w2
ctx_size += n_layer*(n_ff*n_embd*ggml_type_sizef(wtype)); // w3
- ctx_size += n_ctx*n_layer*n_embd*ggml_type_sizef(GGML_TYPE_F32); // memory_k
- ctx_size += n_ctx*n_layer*n_embd*ggml_type_sizef(GGML_TYPE_F32); // memory_v
+ ctx_size += n_ctx*n_layer*n_embd*ggml_type_sizef(memory_type); // memory_k
+ ctx_size += n_ctx*n_layer*n_embd*ggml_type_sizef(memory_type); // memory_v
ctx_size += (5 + 10*n_layer)*256; // object overhead
@@ -293,8 +293,8 @@ bool llama_model_load(const std::string & fname, llama_model & model, gpt_vocab
const int n_mem = n_layer*n_ctx;
const int n_elements = n_embd*n_mem;
- model.memory_k = ggml_new_tensor_1d(ctx, GGML_TYPE_F32, n_elements);
- model.memory_v = ggml_new_tensor_1d(ctx, GGML_TYPE_F32, n_elements);
+ model.memory_k = ggml_new_tensor_1d(ctx, memory_type, n_elements);
+ model.memory_v = ggml_new_tensor_1d(ctx, memory_type, n_elements);
const size_t memory_size = ggml_nbytes(model.memory_k) + ggml_nbytes(model.memory_v);
@@ -814,8 +814,9 @@ int main(int argc, char ** argv) {
// load the model
{
+ const ggml_type memory_type = params.memory_f16 ? GGML_TYPE_F16 : GGML_TYPE_F32;
const int64_t t_start_us = ggml_time_us();
- if (!llama_model_load(params.model, model, vocab, params.n_ctx)) {
+ if (!llama_model_load(params.model, model, vocab, params.n_ctx, memory_type)) {
fprintf(stderr, "%s: failed to load model from '%s'\n", __func__, params.model.c_str());
return 1;
}