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[WIP] Memory footprint reduction in graph creation #4642

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[WIP] Memory footprint reduction in graph creation #4642

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be504cc
reduce memory footprint in graph creation
seunghwak Aug 30, 2024
3b151e0
undo temporary change for benchmarking
seunghwak Aug 30, 2024
ad0c879
update comments
seunghwak Aug 30, 2024
ce4ea93
cosmetic updates
seunghwak Aug 30, 2024
9445027
update renumbering to use binning in more places
seunghwak Sep 3, 2024
bea1498
Merge branch 'branch-24.10' of https://github.com/rapidsai/cugraph in…
seunghwak Sep 3, 2024
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24 changes: 24 additions & 0 deletions cpp/include/cugraph/partition_manager.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -71,6 +71,30 @@ class partition_manager {
: (major_comm_rank * minor_comm_size + minor_comm_rank);
}

#ifdef __CUDACC__
__host__ __device__
#endif
static int
compute_major_comm_rank_from_global_comm_rank(int major_comm_size,
int minor_comm_size,
int comm_rank)
{
return map_major_comm_to_gpu_row_comm ? comm_rank % major_comm_size
: comm_rank / minor_comm_size;
}

#ifdef __CUDACC__
__host__ __device__
#endif
static int
compute_minor_comm_rank_from_global_comm_rank(int major_comm_size,
int minor_comm_size,
int comm_rank)
{
return map_major_comm_to_gpu_row_comm ? comm_rank / major_comm_size
: comm_rank % minor_comm_size;
}

#ifdef __CUDACC__
__host__ __device__
#endif
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