From c53a7c342f2568d21f0fdf9581b9a515f396056b Mon Sep 17 00:00:00 2001
From: David Goz <david.goz@inaf.it>
Date: Thu, 20 Jun 2024 11:11:40 +0200
Subject: [PATCH] mpi/miscellaneous/cartesian.cpp bugfix
---
jacobi/mpi/miscellaneous/cartesian.cpp | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/jacobi/mpi/miscellaneous/cartesian.cpp b/jacobi/mpi/miscellaneous/cartesian.cpp
index c4a9703..7b5a7e5 100644
--- a/jacobi/mpi/miscellaneous/cartesian.cpp
+++ b/jacobi/mpi/miscellaneous/cartesian.cpp
@@ -14,7 +14,7 @@ int main(int argc, char **argv)
MPI_Comm_size(MPI_COMM_WORLD, &ntasks);
MPI_Comm_rank(MPI_COMM_WORLD, &task);
- if (argc < 1)
+ if (argc <= 1)
{
if (!task)
{
@@ -23,7 +23,7 @@ int main(int argc, char **argv)
exit(EXIT_FAILURE);
}
}
-
+
const int cartesian_grid_x = (int)strtol(argv[1], NULL, 10);
const int cartesian_grid_y = ((ntasks % cartesian_grid_x == 0) ? (ntasks / cartesian_grid_x) : -1);
if (cartesian_grid_y == -1)
@@ -63,7 +63,7 @@ int main(int argc, char **argv)
cout << endl;
}
}
-
+
MPI_Comm_free(&comm2d);
MPI_Finalize();
--
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