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cub::DeviceSpmv needs attention #285
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CuPy currently disables CUB SpMV if it's from CUDA's bundle, so it should not affect us if you decide to remove 🙂 |
alliepiper
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Apr 15, 2021
`cub::DeviceSpmv` has not been ported to use cub::detail::ptx_dispatch and uses an older dispatch mechanism that is incompatible with nvc++. It was not ported because there are no tests and thus no way to verify whether or not the ported version works. Rather than risk breaking user code, we'll port this later, after we add tests. NV HPC doesn't require this algorithm so it's low priority for now. Tracked by NVIDIA#285.
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I'd like to use CUB's SPMV as an analysis tool for the memory access patterns of merge-path-based SPMV, since original repo from Duane's paper is no longer compatible with the latest versions of CUDA. |
alliepiper
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May 27, 2021
`cub::DeviceSpmv` has not been ported to use cub::detail::ptx_dispatch and uses an older dispatch mechanism that is incompatible with nvc++. It was not ported because there are no tests and thus no way to verify whether or not the ported version works. Rather than risk breaking user code, we'll port this later, after we add tests. NV HPC doesn't require this algorithm so it's low priority for now. Tracked by NVIDIA#285.
alliepiper
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Jun 9, 2021
`cub::DeviceSpmv` has not been ported to use cub::detail::ptx_dispatch and uses an older dispatch mechanism that is incompatible with nvc++. It was not ported because there are no tests and thus no way to verify whether or not the ported version works. Rather than risk breaking user code, we'll port this later, after we add tests. NV HPC doesn't require this algorithm so it's low priority for now. Tracked by NVIDIA#285.
alliepiper
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Jun 30, 2021
`cub::DeviceSpmv` has not been ported to use cub::detail::ptx_dispatch and uses an older dispatch mechanism that is incompatible with nvc++. It was not ported because there are no tests and thus no way to verify whether or not the ported version works. Rather than risk breaking user code, we'll port this later, after we add tests. NV HPC doesn't require this algorithm so it's low priority for now. Tracked by NVIDIA#285.
alliepiper
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Jul 7, 2021
`cub::DeviceSpmv` has not been ported to use cub::detail::ptx_dispatch and uses an older dispatch mechanism that is incompatible with nvc++. It was not ported because there are no tests and thus no way to verify whether or not the ported version works. Rather than risk breaking user code, we'll port this later, after we add tests. NV HPC doesn't require this algorithm so it's low priority for now. Tracked by NVIDIA#285.
alliepiper
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Jul 20, 2021
`cub::DeviceSpmv` has not been ported to use cub::detail::ptx_dispatch and uses an older dispatch mechanism that is incompatible with nvc++. It was not ported because there are no tests and thus no way to verify whether or not the ported version works. Rather than risk breaking user code, we'll port this later, after we add tests. NV HPC doesn't require this algorithm so it's low priority for now. Tracked by NVIDIA#285.
alliepiper
added a commit
to alliepiper/cub
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Jul 27, 2021
`cub::DeviceSpmv` has not been ported to use cub::detail::ptx_dispatch and uses an older dispatch mechanism that is incompatible with nvc++. It was not ported because there are no tests and thus no way to verify whether or not the ported version works. Rather than risk breaking user code, we'll port this later, after we add tests. NV HPC doesn't require this algorithm so it's low priority for now. Tracked by NVIDIA#285.
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Just to close the loop on this -- we're going to continue supporting it for now, but will likely deprecate it in the future. #352 fixes some bugs and adds tests. |
alliepiper
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Nov 3, 2021
`cub::DeviceSpmv` has not been ported to use cub::detail::ptx_dispatch and uses an older dispatch mechanism that is incompatible with nvc++. It was not ported because there are no tests and thus no way to verify whether or not the ported version works. Rather than risk breaking user code, we'll port this later, after we add tests. NV HPC doesn't require this algorithm so it's low priority for now. Tracked by NVIDIA#285.
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This algorithm has no tests or examples, and some of the names look like they're from a work-in-progress (eg:
dispatch_spmv_orig.cuh). We'll need to either deprecate and remove this code, or fix it up (there are a few bugs filed for it) and add tests/examples.If anyone is actively using this and would be impacted by its removal, leave a comment and let us know.
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