Known issues for AMD GPU profiling

There are a few known issues for AMD GPU profiling.

• The environment variable HSA_ENABLE_INTERRUPT=0 is enabled by default when running HIP applications with Linaro MAP. This is to address an intermittent hang which has been observed. The environment variable FORGE_NO_HSA_INTERRUPT_ENABLE_0=1 restores the default behavior of HIP.

• Line-level information and program counter (PC) sampling are not available for ROCm kernels.

• GPU memory transfer analysis is not available for ROCm kernels.

• HIP Kernels generated by offloaded OpenMP regions are not yet supported by Linaro MAP.

• The graphs are scaled on the assumption that there is a 1:1 relationship between processes and GPUs, each process having exclusive use of its own AMD card. The graphs may be of an unexpected height if some processes do not have a GPU, or if multiple processes share the use of a common GPU.

• GPU profiling is not supported when statically linking the Linaro Forge sampler library.