Package cuSPARSELt

[SomeoneSerge]

Issue description

Introduce cudaPackages.cusparselt based on https://developer.download.nvidia.com/compute/cusparselt/redist/redistrib_0.5.0.json

This is required e.g. to remove the dependency on the runfile-based cudatoolkit in python3Packages.cupy

CC @NixOS/cuda-maintainers

[prusnak]

@sepiabrown Are you working on packaging cusparselt? Do you plan to send a PR?

[sepiabrown]

@sepiabrown Are you working on packaging cusparselt? Do you plan to send a PR?

Yes, I'd like to. I'm trying to build cusparselt for cuda-library-samples but haven't succeeded.

[prusnak]

I'm trying to build cusparselt for cuda-library-samples but haven't succeeded.

How do you build cuda-library-samples for cusparselt? I am having hard time to figure this one out.

[sepiabrown]

I'm trying to build cusparselt for cuda-library-samples but haven't succeeded.

How do you build cuda-library-samples for cusparselt? I am having hard time to figure this one out.

I have succeeded in building cuda-library-samples for cusparselt. There are some quirks that seem unnecessary. For example, I have organised the code for cusparselt using the code from cutensor and it doesn't populate the lib64 folder but only populate lib. However, cuda-library-samples requires lib64, so I postPatched it like below.

+      postPatch = ''
+        substituteInPlace CMakeLists.txt \
+          --replace-fail "''${CUSPARSELT_ROOT}/lib64/libcusparseLt.so" "${lib.getLib cusparselt}/lib/libcusparseLt.so" \
+          --replace-fail "''${CUSPARSELT_ROOT}/lib64/libcusparseLt_static.a" "${lib.getStatic cusparselt}/lib/libcusparseLt_static.a"
+      '';

[prusnak]

Done in #390863