| Age | Commit message (Collapse) | Author | |
|---|---|---|---|
| 2025-09-19 | [Offload] Implement 'olIsValidBinary' in offload and clean up (#159658) | Joseph Huber | |
| Summary: This exposes the 'isDeviceCompatible' routine for checking if a binary *can* be loaded. This is useful if people don't want to consume errors everywhere when figuring out which image to put to what device. I don't know if this is a good name, I was thining like `olIsCompatible` or whatever. Let me know what you think. Long term I'd like to be able to do something similar to what OpenMP does where we can conditionally only initialize devices if we need them. That's going to be support needed if we want this to be more generic. | |||
| 2025-04-29 | [Offload] Add check-offload-unit for liboffload unittests (#137312) | Callum Fare | |
| Adds a `check-offload-unit` target for running the liboffload unit test suite. This unit test binary runs the tests for every available device. This can optionally filtered to devices from a single platform, but the check target runs on everything. The target is not part of `check-offload` and does not get propagated to the top level build. I'm not sure if either of these things are desirable, but I'm happy to look into it if we want. Also remove the `offload/unittests/Plugins` test as it's dead code and doesn't build. | |||
| 2025-04-22 | [Offload] Implement the remaining initial Offload API (#122106) | Callum Fare | |
| Implement the complete initial version of the Offload API, to the extent that is usable for simple offloading programs. Tested with a basic SYCL program. As far as possible, these are simple wrappers over existing functionality in the plugins. * Allocating and freeing memory (host, device, shared). * Creating a program * Creating a queue (wrapper over asynchronous stream resource) * Enqueuing memcpy operations * Enqueuing kernel executions * Waiting on (optional) output events from the enqueue operations * Waiting on a queue to finish Objects created with the API have reference counting semantics to handle their lifetime. They are created with an initial reference count of 1, which can be incremented and decremented with retain and release functions. They are freed when their reference count reaches 0. Platform and device objects are not reference counted, as they are expected to persist as long as the library is in use, and it's not meaningful for users to create or destroy them. Tests have been added to `offload.unittests`, including device code for testing program and kernel related functionality. The API should still be considered unstable and it's very likely we will need to change the existing entry points. | |||
