9c9d9e4cb6
Add the following properties in Offload device info: * VENDOR_ID * NUM_COMPUTE_UNITS * [SINGLE|DOUBLE|HALF]_FP_CONFIG * NATIVE_VECTOR_WIDTH_[CHAR|SHORT|INT|LONG|FLOAT|DOUBLE|HALF] * MAX_CLOCK_FREQUENCY * MEMORY_CLOCK_RATE * ADDRESS_BITS * MAX_MEM_ALLOC_SIZE * GLOBAL_MEM_SIZE Add a bitfield option to enumerators, allowing the values to be bit-shifted instead of incremented. Generate the per-type enums using `foreach` to reduce code duplication. Use macros in unit test definitions to reduce code duplication.
Liboffload
This directory contains the implementation of the work-in-progress new API for Offload. It builds on top of the existing plugin implementations but provides a single level of abstraction suitable for implementation of many offloading language runtimes, rather than just OpenMP.
Testing liboffload
The main test suite for liboffload can be run with the check-offload-unit
target, which runs the offload.unittests executable. The test suite will
automatically run on every available device, but can be restricted to a single
platform (CUDA, AMDGPU) with a command line argument:
$ ./offload.unittests --platform=CUDA
Tracing of Offload API calls can be enabled by setting the OFFLOAD_TRACE
environment variable. This works with any program that uses liboffload.
$ OFFLOAD_TRACE=1 ./offload.unittests
---> olInit()-> OL_SUCCESS
# etc
The host plugin is not currently supported.
Modifying liboffload
The main header (OffloadAPI.h) and some implementation details are
autogenerated with tablegen. See the API definition README
for implementation details.