Some observations on using cuPDLP-C with HiGHS

[jajhall]

I've managed to get cuPDLP-C (for CPU) running on my Linux PC, and here are some observations

• Make it clear in the README that the precompiled Github download of HiGHS should be used
• The following command in the README is incorrect: it should have "..". Using just

cmake --build . --target plc

I get

Error: could not load cache

• The HiGHS binaries are built without zlib support, so the hard-coded char *fname = "./example/afiro.mps.gz"; can't be read. Hence bin/plc can only be run successfully using the -fname command line parameter. Hence I've replaced afiro.mps.gz locally by afiro.mps, and suggest that you do the same

My modified README.md and mps_highs.c are in the following file - which unzips into the same folder as the one in which it is stored

highs-mods.zip

[bzhangcw]

Dear Dr. Hall, thanks for your comments on this version built on HiGHS. We have included a download link to https://github.com/JuliaBinaryWrappers/HiGHS_jll.jl/releases; otherwises someone may use the static version instead.

It is weird to see cmake --build . --target plc does not work; we are fine on both Linux and Mac. Thanks for the suggestion on zlib support. 😀

[jajhall]

With "cmake --build . --target plc", it works for me if run from the directory below 'build', of course

[bzhangcw]

Perfect!