Adjust block size in OverlappingSpace instance tests to remain within…

… Cuda/HIP limits
parthenon-hpc-lab · Apr 16, 2021 · b228502 · b228502
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -12,6 +12,7 @@
 - [[PR 487]](https://github.com/lanl/parthenon/pull/487) Add default tiling matching `i` index range to MDRange loop pattern.
 
 ### Infrastructure (changes irrelevant to downstream codes)
+- [[PR 490]](https://github.com/lanl/parthenon/pull/490) Adjust block size in OverlappingSpace instance tests to remain within Cuda/HIP limits
 - [[PR 488]](https://github.com/lanl/parthenon/pull/488) Update GitLab Dockerfile to use HDF5 version 1.10.7
 
 ### Removed (removing behavior/API/varaibles/...)

diff --git a/tst/unit/kokkos_abstraction.cpp b/tst/unit/kokkos_abstraction.cpp
@@ -631,7 +631,7 @@ template <class BufferPack>
 void test_wrapper_buffer_pack_overlapping_space_instances(const std::string &test_name) {
   auto default_exec_space = DevExecSpace();
 
-  const int N = 32;      // ~meshblock size
+  const int N = 24;      // ~meshblock size
   const int M = 5;       // ~nhydro
   const int nspaces = 8; // number of streams
   const int nghost = 2;  // number of ghost zones