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metal : show all Metal device instances in the system (#2952)

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* ggml_metal_init: Show all Metal device instances in the system

Also show the default Metal device that was picked.

* Update ggml-metal.m

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
This commit is contained in:
Karsten Weiss 2023-09-02 14:29:09 +02:00 committed by GitHub
parent 21f3d1be86
commit 8b56b4f2c3
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1 changed files with 16 additions and 2 deletions
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ggml-metal.m
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@ -116,10 +116,24 @@ static NSString * const msl_library_source = @"see metal.metal";
struct ggml_metal_context * ggml_metal_init(int n_cb) { struct ggml_metal_context * ggml_metal_init(int n_cb) {
metal_printf("%s: allocating\n", __func__); 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 <MTLDevice> 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->n_cb = MIN(n_cb, GGML_METAL_MAX_BUFFERS);
ctx->device = MTLCreateSystemDefaultDevice();
ctx->queue = [ctx->device newCommandQueue]; ctx->queue = [ctx->device newCommandQueue];
ctx->n_buffers = 0; ctx->n_buffers = 0;
ctx->concur_list_len = 0; ctx->concur_list_len = 0;