From: Daniel Arndt <daniel.arndt@iwr.uni-heidelberg.de>
Date: Thu, 25 Apr 2019 21:12:06 +0000 (+0200)
Subject: Address row_start
X-Git-Tag: v9.1.0-rc1~166^2~1
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4813346904909597985c7fc6ba6c67d8be42bd12;p=dealii.git

Address row_start
---

diff --git a/include/deal.II/matrix_free/cuda_matrix_free.templates.h b/include/deal.II/matrix_free/cuda_matrix_free.templates.h
index 64a399bb68..7a5e1460cc 100644
--- a/include/deal.II/matrix_free/cuda_matrix_free.templates.h
+++ b/include/deal.II/matrix_free/cuda_matrix_free.templates.h
@@ -894,7 +894,8 @@ namespace CUDAWrappers
       }
 
     // Setup row starts
-    row_start[0] = 0;
+    if (n_colors > 0)
+      row_start[0] = 0;
     for (unsigned int i = 1; i < n_colors; ++i)
       row_start[i] = row_start[i - 1] + n_cells[i - 1] * get_padding_length();