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lgorithmique
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umérique
D
istribuée
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have smp-aware algorithms use number of cores on the node as basis for their computat...
[simgrid.git]
/
src
/
smpi
/
colls
/
allreduce-smp-rsag.c
diff --git
a/src/smpi/colls/allreduce-smp-rsag.c
b/src/smpi/colls/allreduce-smp-rsag.c
index
24ccaa0
..
9de2bcf
100644
(file)
--- a/
src/smpi/colls/allreduce-smp-rsag.c
+++ b/
src/smpi/colls/allreduce-smp-rsag.c
@@
-19,10
+19,13
@@
int smpi_coll_tuned_allreduce_smp_rsag(void *send_buf, void *recv_buf,
{
int comm_size, rank;
void *tmp_buf;
- int tag =
50
;
+ int tag =
COLL_TAG_ALLREDUCE
;
int mask, src, dst;
MPI_Status status;
- int num_core = NUM_CORE;
+ int num_core = simcall_host_get_core(SIMIX_host_self());
+ // do we use the default one or the number of cores in the platform ?
+ // if the number of cores is one, the platform may be simulated with 1 node = 1 core
+ if (num_core == 1) num_core = NUM_CORE;
/*
#ifdef MPICH2_REDUCTION
MPI_User_function * uop = MPIR_Op_table[op % 16 - 1];