Hello everyone, I am an iOS developer looking to switch fields and interested in, but new to the GPU programming world, and only have access to an Apple silicon MacBook. According to the system requirements for Macs at FAQ | Modular , an Apple silicon Mac is required, however its GPU is not suppor…

If you’re willing to do the “hardmode” version, I believe that you should be able to run code on Apple Silicon Mac GPUs now, but that much of the standard library and MAX are missing support. Helping with bring-up there is going to be diving into the deep end, but you will learn a lot.

@owenhilyard Can you elaborate on what is already done, what needs doing and also give some pointers on how to get started? Does Mojo already support the Mac GPU as a compilation target, so the “only” thing that needs adding is a way to manage the GPU (a new DeviceContext backend maybe?). Let’s sa…

First, you’ll need to be using nightly builds. Mojo supports compiling code to the Mac GPU, but most of the standard library has stuff like: if target == aarch64: ... elif target == x86_64: ... elif target == cuda: ... elif target == amdgpu: ... else: abort("unknown target") So, Apple silicon bran…

We’re in the early stages of landing the basic components for Apple Silicon GPU support in the nightlies, including a new backend for DeviceContext. You can’t actually do much with what has been integrated so far, which is why we’ve held off from posting about it. We’ll be sure to let people know wh…

Hi Brad, Thank you very much for the info. I’m guessing this will take some time then. What channels do you usually use to announce these kind of updates?

We’ve previously done these posts about new functionality in the nightly builds here in the forum, and I’ll try to remember to follow up in this thread with a link when it’s up. I can’t promise any timelines, but we are actively working on this with the hope of at least minimal functionality landing…

We announced this in tonight’s community livestream: tonight’s Mojo nightly has enough functionality to run a very basic Mojo GPU function on Apple Silicon GPUs. This is currently gated behind the environment flag MOJO_ENABLE_HAS_GPU_FOR_APPLE, but if you set that flag you’ll be able to build the ex…

Are there any prerequisites for running the vector_addition_metal example besides using nightly build? When I tested the example I got a create Metal library error.

Make sure you’re on macOS 15 (Sequoia) or newer, and have Xcode installed. We’re currently generating bitcode for Metal Shading Language version 3.2, which is available in macOS 15+. Xcode is needed to compile the final .metallib before execution.

GPU Programming on Mac

GPU Programming

a10i (Adam) August 26, 2025, 10:51am 8

Also thanks to you Owen, for taking the time to reply. Based on what Brad wrote, I think I’ll just wait until the support is available.

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GPU Programming on Mac

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