From: Peter Munch <peterrmuench@gmail.com>
Date: Sun, 15 May 2022 10:13:30 +0000 (+0200)
Subject: LA:d:V: fix size in the case of shared memory
X-Git-Tag: v9.4.0-rc1~214^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6cb2822cfc47102fc8ef7611e330c9505802503c;p=dealii.git

LA:d:V: fix size in the case of shared memory
---

diff --git a/include/deal.II/lac/la_parallel_vector.templates.h b/include/deal.II/lac/la_parallel_vector.templates.h
index f1eca66944..97fd82bd54 100644
--- a/include/deal.II/lac/la_parallel_vector.templates.h
+++ b/include/deal.II/lac/la_parallel_vector.templates.h
@@ -171,10 +171,9 @@ namespace LinearAlgebra
 
               const std::size_t align_by = 64;
 
-              std::size_t s =
-                ((new_alloc_size * sizeof(Number) + align_by - 1) /
-                 sizeof(Number)) *
-                sizeof(Number);
+              std::size_t s = ((new_alloc_size * sizeof(Number) + align_by) /
+                               sizeof(Number)) *
+                              sizeof(Number);
 
               ierr = MPI_Win_allocate_shared(
                 s, sizeof(Number), info, comm_shared, &data_this, &mpi_window);