AMD GPU Support via HIP/ROCm#1379

Draft

ptheywood wants to merge 96 commits into

Commits on Apr 7, 2026

WIP: Partially finished CMake changes for HIP support.
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CUDA/HIP compiler settings and warnign flags
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CMake: CMAKE_HIP_ARCHITECTURES thoughts. far from trivial, maybe just native for now?
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CMake: Disable HIP architectures author warning while it is being thought about for CI's benefit
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fixup: find_package(hip not HIP
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Clang: fix -Wunused-const-variable warnings via inline in defines.h
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Readme: Explicitly mention hip/rocm host compiler issues.
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CMake: Emit a single warning if the CXX compiler does not understand -x hip with HIP enabled.
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Clang: Suppress -Wunused-but-set-variable warnings for variables only used in debug-only macros (DTHROW)
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Clang: make flamegpu::nvtx::push/pop not static to address -Wunneeded-internal-declaration warnings
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Clang: Address -Wpressimizing-move warnings (prevented copy elision)
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Clang: Address -Winconsistent-missing-override warnings
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CMake: Mark nlohmann_json as a SYSTEM dependency to suppress clang warnings
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CMake: Mark all external fetched libraries as SYSTEM
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TO REBASE/TESTWCU120: Use std::less/greater rather than deprecated thrust::less/greater
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Clang: Address -Wunused-but-set-variable warnings in the CXX test suite
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Clang: Address -Wimplicit-const-int-float-conversion warning in test suite via int division/multiplication
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Remove CUDA checks which are no longer relevant due to our minimum supported CUDA version
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CMake: Do not check for CUDA >= 11.2 for FLAMEGPU_NVCC_THREADS
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CMake: Add FLAMEGPU_USE_CUDA/FLAMEGPU_USE_HIP public target definitions
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WIP: Guard cuda includes behind FLAMEGPU_USE_CUDA
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WIP: initial macro-based abstration port for HIP.
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Commits on Apr 9, 2026

HIP/AMD: Add a not implemented errors if RTC functions / conditions would be launched.
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Commits on Apr 14, 2026

Commits on Apr 22, 2026

Tests: correct skipping of ApplyConfigDerivedContextCreation
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Commits on Apr 23, 2026

Commits on Apr 27, 2026

Breaking Change: Consistently return int for all MessageArray Filter getOffset methods
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Commits on Apr 28, 2026

Commits on Apr 30, 2026

Commits on May 1, 2026