diff --git a/ggml-metal.m b/ggml-metal.m index 8c3c64f53f00a..6d94a4f673e3c 100644 --- a/ggml-metal.m +++ b/ggml-metal.m @@ -116,10 +116,24 @@ @implementation GGMLMetalClass struct ggml_metal_context * ggml_metal_init(int n_cb) { metal_printf("%s: allocating\n", __func__); - struct ggml_metal_context * ctx = malloc(sizeof(struct ggml_metal_context)); + // Show all the Metal device instances in the system + NSArray * devices = MTLCopyAllDevices(); + id device; + NSString * s; + for (device in devices) { + s = [device name]; + metal_printf("%s: found device: %s\n", __func__, [s UTF8String]); + } + // Pick and show default Metal device + device = MTLCreateSystemDefaultDevice(); + s = [device name]; + metal_printf("%s: picking default device: %s\n", __func__, [s UTF8String]); + + // Configure context + struct ggml_metal_context * ctx = malloc(sizeof(struct ggml_metal_context)); + ctx->device = device; ctx->n_cb = MIN(n_cb, GGML_METAL_MAX_BUFFERS); - ctx->device = MTLCreateSystemDefaultDevice(); ctx->queue = [ctx->device newCommandQueue]; ctx->n_buffers = 0; ctx->concur_list_len = 0;