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coll/cnc: Add support for libcncoll collectives #8064

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Merged
hzhou merged 2 commits into from
Nov 13, 2026
Merged

coll/cnc: Add support for libcncoll collectives #8064

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ffd55d3
coll/cnc: Add support for libcncoll collectives
raffenet Oct 21, 2026
5197b67
test/units: Add cnc_coll unit tests
raffenet Nov 11, 2026
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3 changes: 3 additions & 0 deletions src/include/mpir_comm.h
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Original file line number Diff line number Diff line change
Expand Up @@ -230,6 +230,9 @@ struct MPIR_Comm {
int topo_wave_tree_lat_diff_switches;
int topo_wave_tree_lat_same_switches;
MPIR_Treealgo_tree_t *topo_wave_tree;
#ifdef ENABLE_CNC
void *cnc_priv;
#endif
} coll;

#if defined HAVE_HCOLL
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1 change: 1 addition & 0 deletions src/mpi/coll/Makefile.mk
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Expand Up @@ -11,6 +11,7 @@ include $(top_srcdir)/src/mpi/coll/alltoallv/Makefile.mk
include $(top_srcdir)/src/mpi/coll/alltoallw/Makefile.mk
include $(top_srcdir)/src/mpi/coll/barrier/Makefile.mk
include $(top_srcdir)/src/mpi/coll/bcast/Makefile.mk
include $(top_srcdir)/src/mpi/coll/cnc/Makefile.mk
include $(top_srcdir)/src/mpi/coll/exscan/Makefile.mk
include $(top_srcdir)/src/mpi/coll/gather/Makefile.mk
include $(top_srcdir)/src/mpi/coll/gatherv/Makefile.mk
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14 changes: 14 additions & 0 deletions src/mpi/coll/cnc/Makefile.mk
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@@ -0,0 +1,14 @@
##
## Copyright (C) by Argonne National Laboratory
## See COPYRIGHT in top-level directory
##

if BUILD_CNC

mpi_core_sources += \
src/mpi/coll/cnc/cnc_coll.c

noinst_HEADERS += \
src/mpi/coll/cnc/cnc_internal.h

endif BUILD_CNC
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