rocm-systems/projects/hip-tests/samples/0_Intro/bit_extract/README.md

bit_extract

Show an application written directly in HIP which uses platform-specific check on HIP_PLATFORM_AMD to enable use of an instruction that only exists on the AMD platform.

See related blog demonstrating platform specialization.

• Steps to build this sample:

$ mkdir build; cd build
$ cmake .. -DCMAKE_PREFIX_PATH=/opt/rocm
$ make

• Execute File

$ ./bit_extract

pch size: 11743288
__hipGetPCH succeeded!
info: running on device #0
info: allocate host mem (  7.63 MB)
info: allocate device mem (  7.63 MB)
info: copy Host2Device
info: launch 'bit_extract_kernel'
info: copy Device2Host
info: check result
PASSED!