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GPU Performance Portability Samples

The samples have been tested on the following systems:

Saxpy

Iris Tulip Crusher local
CUDA yes
HIP yes yes yes
Kokkos yes yes yes
OpenCL yes yes yes
OpenMP yes yes fails

Histogram

Iris Tulip Crusher local
CUDA yes
HIP yes yes yes
Kokkos yes yes yes
OpenCL yes yes yes
OpenMP * ** ***

* Internal compiler error: omp_pteam_mem_alloc is not yet supported. Can work around by commenting out the allocator line, unclear if it's using shared memory in that case or not.

** Internal compiler error.

*** <unknown>:0: error: local_histogram: unsupported initializer for address space

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Code samples for 5 GPU programming models

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