gpu.cpp: new recipe

[valgur]

Summary

Changes to recipe: gpu.cpp/cci.20240726

Motivation

gpu.cpp is a lightweight library that makes portable GPU compute with C++ simple.

It focuses on general purpose native GPU computation, leveraging the WebGPU specification as a portable low-level GPU interface. This means we can drop in GPU code in C++ projects and have it run on Nvidia, Intel, AMD, and other GPUs. The same C++ code can work on a wide variety of laptops, workstations, mobile devices or virtually any hardware with Vulkan, Metal, or DirectX support.

https://gpucpp.answer.ai/

Details

The library is not yet very stable in terms of the build system, it seems. It currently does not install any headers or export a CMake config. I opted to place the installed headers under an unofficial gpu.cpp/ prefix and chose to use the gpu.cpp CMake file name and gpu.cpp::gpu.cpp CMake target implicitly generated by Conan.

I'll probably have to simplify test_package.cpp, but I'd like to see whether the more complex one passes for all CCI configurations first.

• Requires dawn: new recipe #24735

/cc @AnswerDotAI @austinvhuang

---

• Read the contributing guidelines
• Checked that this PR is not a duplicate: list of PRs by recipe
• Tested locally with at least one configuration using a recent version of Conan

[conan-center-bot]

Conan v1 pipeline ❌

Failure in build 1 (ec5add253fa451595496498a55dd3feaa083896f):

• gpu.cpp/cci.20240726:
  Error running command conan info gpu.cpp/cci.20240726@#9b17ef4c8e8c950d6288a41095202e2e --json {jsonName} --dry-build -pr {profileName}:

  [settings]
  arch=x86_64
  build_type=Release
  compiler=gcc
  compiler.libcxx=libstdc++11
  compiler.version=5
  os=Linux
  
  ...
  ERROR: Failed requirement 'dawn/cci.20240726' from 'gpu.cpp/cci.20240726'
  ERROR: Unable to find 'dawn/cci.20240726' in remotes
  

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^{Note: To save resources, CI tries to finish as soon as an error is found. For this reason you might find that not all the references have been launched or not all the configurations for a given reference. Also, take into account that we cannot guarantee the order of execution as it depends on CI workload and workers availability.}

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Conan v2 pipeline ❌

Note: Conan v2 builds are now mandatory. Please read our discussion about it.

The v2 pipeline failed. Please, review the errors and note this is required for pull requests to be merged. In case this recipe is still not ported to Conan 2.x, please, ping @conan-io/barbarians on the PR and we will help you.

Failure in build 1 (ec5add253fa451595496498a55dd3feaa083896f):

• gpu.cpp/cci.20240726:
  Error running command conan graph info --requires gpu.cpp/cci.20240726@#9b17ef4c8e8c950d6288a41095202e2e --build gpu.cpp/cci.20240726@#9b17ef4c8e8c950d6288a41095202e2e -f json -pr:h /home/conan/workspace/prod-v2/bsr/66809/decfe/profile_linux_11_libstdcpp11_17_gcc_release_64..txt -pr:b /home/conan/workspace/prod-v2/bsr/66809/decfe/profile_linux_11_libstdcpp11_17_gcc_release_64..txt:

  ======== Computing dependency graph ========
  dawn/cci.20240726: Not found in local cache, looking in remotes...
  dawn/cci.20240726: Checking remote: conan-center
  dawn/cci.20240726: Checking remote: c3i_PR-v2-24736
  Graph root
      cli
  Requirements
      gpu.cpp/cci.20240726#9b17ef4c8e8c950d6288a41095202e2e - Cache
  ERROR: Package 'dawn/cci.20240726' not resolved: Unable to find 'dawn/cci.20240726' in remotes.
  

---

^{Note: To save resources, CI tries to finish as soon as an error is found. For this reason you might find that not all the references have been launched or not all the configurations for a given reference. Also, take into account that we cannot guarantee the order of execution as it depends on CI workload and workers availability.}