metal : release buffers when freeing metal context (#2062)

2 files changed, 10 insertions, 2 deletions

diff --git a/ggml-metal.m b/ggml-metal.m
index 7551231..fd69c41 100644
--- a/ggml-metal.m
+++ b/ggml-metal.m
@@ -202,7 +202,9 @@ struct ggml_metal_context * ggml_metal_init(void) {
 
 void ggml_metal_free(struct ggml_metal_context * ctx) {
     fprintf(stderr, "%s: deallocating\n", __func__);
-
+    for (int i = 0; i < ctx->n_buffers; ++i) {
+        [ctx->buffers[i].metal release];
+    }
     free(ctx);
 }
 
diff --git a/llama.cpp b/llama.cpp
index 69c2ab0..561accf 100644
--- a/llama.cpp
+++ b/llama.cpp
@@ -253,7 +253,13 @@ struct llama_model {
 
 struct llama_context {
     llama_context(const llama_model & model, const llama_vocab & vocab) : model(model), vocab(vocab), t_load_us(model.t_load_us), t_start_us(model.t_start_us) {}
-
+#ifdef GGML_USE_METAL
+    ~llama_context() {
+        if (ctx_metal) {
+            ggml_metal_free(ctx_metal);
+        }
+    }
+#endif
     std::mt19937 rng;
 
     bool has_evaluated_once = false;