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Fix recv count and initialize all variables #642

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merged 1 commit into from
Mar 3, 2025
Merged

Fix recv count and initialize all variables #642

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14 changes: 7 additions & 7 deletions src/caliper/aggregate_over_mpi.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -81,12 +81,12 @@ void pack_and_send(int dest, CaliperMetadataAccessInterface& db, Aggregator& agg

size_t receive_and_merge_nodes(int source, CaliperMetadataDB& db, IdMap& idmap, MPI_Comm comm)
{
unsigned count;
unsigned count = 0;

MPI_Recv(&count, 1, MPI_UNSIGNED, source, 1, comm, MPI_STATUS_IGNORE);

MPI_Status status;
int size;
int size = 0;

MPI_Probe(source, 2, comm, &status);
MPI_Get_count(&status, MPI_BYTE, &size);
Expand All @@ -110,12 +110,12 @@ size_t receive_and_merge_snapshots(
MPI_Comm comm
)
{
unsigned count;
unsigned count = 0;

MPI_Recv(&count, 3, MPI_UNSIGNED, source, 3, comm, MPI_STATUS_IGNORE);
MPI_Recv(&count, 1, MPI_UNSIGNED, source, 3, comm, MPI_STATUS_IGNORE);

MPI_Status status;
int size;
int size = 0;

MPI_Probe(source, 4, comm, &status);
MPI_Get_count(&status, MPI_BYTE, &size);
Expand Down Expand Up @@ -161,8 +161,8 @@ namespace cali

void aggregate_over_mpi(CaliperMetadataDB& metadb, Aggregator& aggr, MPI_Comm comm)
{
int commsize;
int rank;
int commsize = 1;
int rank = 0;

MPI_Comm_size(comm, &commsize);
MPI_Comm_rank(comm, &rank);
Expand Down