HIP_PLATFORM=nvidia

[monofuel]

• [ ] fix launchKernel() to work properly in all cases
• [ ] figure out a way to get the nim compiler to wrap compiler / linker args with -Xcompiler=""

[monofuel]

Error: execution of an external compiler program 'hipcc -c -std=gnu++17 -funsigned-char  -pthread -I/opt/rocm/include -std=c++17   -I/home/monofuel/Documents/src/monofuel34089/Nim/lib -I/home/monofuel/Documents/src/monofuel34089/hippo/tests/hip -o /home/monofuel/.cache/nim/call_params_d/@m..@s..@s..@sNim@slib@ssystem@sexceptions.nim.cpp.o /home/monofuel/.cache/nim/call_params_d/@m..@s..@s..@sNim@slib@ssystem@sexceptions.nim.cpp' failed with exit code: 1

nvcc fatal   : Value 'gnu++17' is not defined for option 'std'

nvcc doesn't like the default std flag from cppXsupport

[monofuel]

got it working with couple of hacks in https://github.com/monofuel/Nim/tree/hipcc-nvcc

The problem for nvcc (and for hipcc when using the nvcc backend), is that all compiler flags like -std and -pthreads needs to be wrapped with -Xcompiler="..." I made some changes in nim in this branchhttps://github.com/monofuel/Nim/tree/hipcc-nvcc to handle wrapping, but my changes are ugly. it needs to be done for both the compiler and the linker, it must include all passc and passl options

[monofuel]

nim ships a vccexe.exe to handle converting gcc style params to visual C++ params.

the -Xcompiler flags need to be set in 2 cases: when using nvcc directly, or when using hipcc when HIP_PLATFORM=nvidia

we could follow the vccexe pattern and make a similar utility for gpu compiler arguments

[monofuel]

turns out, does not need to be as complicated as vccexe

https://github.com/monofuel/Nim/commit/8e3afdfc235b7701e40a15a00b1e00fd81426bdb