From 59e3861e82e66fed3c5865b07965c3db2c0bfe42 Mon Sep 17 00:00:00 2001
From: Stephan Seitz <stephan.seitz@fau.de>
Date: Fri, 17 Jan 2020 16:07:36 +0100
Subject: [PATCH] Fix bug related to ParallelDataHandling
```python
def to_gpu(gpu_version, cpu_version):
gpu_version = gpu_version.boundary_object_to_index_list
cpu_version = cpu_version.boundary_object_to_index_list
> if isinstance(self.data_handling, ParallelDataHandling):
E TypeError: isinstance() arg 2 must be a type or tuple of types
../pystencils/pystencils/boundaries/boundaryhandling.py:102: TypeError
```
None is not a type! ParallelDataHandling is None if `waLBerla` is not
installed
---
pystencils/boundaries/boundaryhandling.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/pystencils/boundaries/boundaryhandling.py b/pystencils/boundaries/boundaryhandling.py
index 4c3f8aec0..0a33fde2e 100644
--- a/pystencils/boundaries/boundaryhandling.py
+++ b/pystencils/boundaries/boundaryhandling.py
@@ -99,7 +99,7 @@ class BoundaryHandling:
gpu_version = gpu_version.boundary_object_to_index_list
cpu_version = cpu_version.boundary_object_to_index_list
- if isinstance(self.data_handling, ParallelDataHandling):
+ if ParallelDataHandling and isinstance(self.data_handling, ParallelDataHandling):
array_handler = PyCudaArrayHandler()
else:
array_handler = self.data_handling.array_handler
--
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