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Update README (#1757)
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havogt authored Apr 20, 2023
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Expand Up @@ -36,8 +36,8 @@ CUDAHOSTCXX=`which g++` # full path to the C++ compiler to be used as CUDA host

##### Requirements
- C++17 compiler (see also list of tested compilers)
- Boost (1.65.1 or later)
- CMake (3.14.5 or later)
- Boost headers (1.65.1 or later)
- CMake (3.18.1 or later)
- CUDA Toolkit (11.0 or later, optional)
- MPI (optional, CUDA-aware MPI for the GPU communication module `gcl_gpu`)

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| Compiler | Backend | Date | Comments |
| --- | --- | --- | --- |
| Intel 19.1.1.217 | all backends | 2021-09-30 | with `cmake . -DCMAKE_CXX_FLAGS=-qnextgen` |

##### Officially not supported (no workarounds implemented and planned)

| Compiler | Backend | Date | Comments |
| --- | --- | --- | --- |
| Cray without Clang frontend| cpu_kfirst | | no effort to fix compilation |
| Cray clang version 9.0.2 | all backends | 2020-09-30 | with Cray extensions (works with flags `-fno-cray -fno-cray-gpu`) |
| PGI 20.1 | cpu backends | 2020-10-08 | no effort to fix compilation |
| Intel 19.1.0.166 | all backends | 2020-05-11 | even with `-qnextgen`, no effort to fix compilation |
| NVHPC 23.3 | all backends | 2023-04-20 | only compilation is tested regularly in CI |

### Contributing

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