Comments (1)
egboman
commented on May 25, 2024
I think this is a good idea and may have several use cases. The speculative/optimistic coloring method can be extended to this case but it requires some thought. Even in serial multiple passes may be needed to resolve "chains" in the graph (as pointed out by Mehmet). In parallel, we have to be careful about how to do the conflict resolution. For an edge (i,j) only either i or j needs be recolored but we don't know if (j,i) is in the graph. A simple option would be to recolor both i and j but this could potentially cause deadlock or non-termination (if both threads keep picking same color).
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Related Issues (20)
- Unecessary wait in oneMKL SpMV for 2023.2 and up HOT 1
- Remove references to `KokkosKernels_LINALG_OPT_LEVEL`
- Make sure `KokkosKernels_ENABLED_COMPONENTS` list of valid options is complete
- Necessity of both `KokkosKernels_ENABLED_COMPONENTS` and `KokkosKernels_ENABLE_...`? HOT 6
- axpby introduced deep_copies when alpha,beta are scalars HOT 2
- HIP -O0 -g: spgemm producess incorrect entries
- Trilinos nightly failure, ifpack2: spiluk errors with too few arguments to function call HOT 1
- One-based-ness of coloring is undocumented HOT 1
- Trilinos nightly failure, tpetra: no matching function for call to 'spadd_symbolic' HOT 1
- `KokkosBlas::Impl::MV_Reciprocal_Generic`: `g++-12` internal compiler failure with `-O3 -march=skylake-avx512` HOT 3
- rocSPARSE 3.0.2 for ROCm 6.0 breaking changes HOT 3
- Nightly test failures with cusolver tpl enabled, Cuda.svd_* unit tests HOT 6
- Nightly test failures, Cuda.svd_* and MKL DGEMM HOT 5
- Nightly test failures, builds with gcc/8.3.0 as host compiler: cc1plus: error with KokkosSparse::Impl::Sequential::TrsvWrap<...>::divide HOT 3
- Trilinos nightly failure, Cuda+UVM build, ifpack2/stokhos/sacado interaction in Ifpack2_LocalSparseTriangularSolver_def
- Lapack cuda.gesv_double test failing
- SYCL/PVC: native spmv, spmv_mv fail for complex_double
- Intel/2023.1.0 OpenMP, Serial test failures on SPR HOT 6
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