From 04158740521e4da4754e0f8f44092fcb8b898dac Mon Sep 17 00:00:00 2001
From: Mikael Huppunen <mikael.huppunen@gmail.com>
Date: Tue, 9 Jun 2026 16:03:36 +0300
Subject: [PATCH 1/3] Restore gitignore

---
 .gitignore | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/.gitignore b/.gitignore
index b073e43735..9af1653da5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,3 +19,8 @@ nbproject
 vlsvdiff_DP
 vlsvextract_DP
 compile_commands.json
+libraries*/
+library-build/
+run_*/
+!run_tests.sh
+profile/
\ No newline at end of file

From d67a748624711780226963a8d6f9fbcc8f22430d Mon Sep 17 00:00:00 2001
From: Mikael Huppunen <mikael.huppunen@gmail.com>
Date: Mon, 27 Jul 2026 17:51:26 +0300
Subject: [PATCH 2/3] Not making a new datatype in case of one displacement

---
 spatial_cells/spatial_cell_gpu.cpp | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/spatial_cells/spatial_cell_gpu.cpp b/spatial_cells/spatial_cell_gpu.cpp
index 606c0a6794..4d19b2ada6 100644
--- a/spatial_cells/spatial_cell_gpu.cpp
+++ b/spatial_cells/spatial_cell_gpu.cpp
@@ -1002,14 +1002,20 @@ namespace spatial_cell {
       MPI_Datatype datatype;
 
       if (displacements.size() > 0) {
-         count = 1;
-         MPI_Type_create_hindexed(
-            displacements.size(),
-            &block_lengths[0],
-            &displacements[0],
-            MPI_BYTE,
-            &datatype
-         );
+         if (displacements.size() == 1) {
+            address = address + displacements[0];
+            count = block_lengths[0];
+            datatype = MPI_BYTE;
+         } else {
+            count = 1;
+            MPI_Type_create_hindexed(
+               displacements.size(),
+               &block_lengths[0],
+               &displacements[0],
+               MPI_BYTE,
+               &datatype
+            );
+         }
       } else {
          count = 0;
          datatype = MPI_BYTE;

From 630a836c0d0408cbce969d7613acd17c717a53ba Mon Sep 17 00:00:00 2001
From: Mikael Huppunen <mikael.huppunen@gmail.com>
Date: Tue, 4 Aug 2026 09:43:11 +0300
Subject: [PATCH 3/3] Added endline to gitignore

---
 .gitignore | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index 9af1653da5..a96cbe7db0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,4 +23,4 @@ libraries*/
 library-build/
 run_*/
 !run_tests.sh
-profile/
\ No newline at end of file
+profile/