Let the glymur library multiple cpus for decoding.

girder · Jan 15, 2021 · 4fccb0b · 4fccb0b
1 parent 2b70de7
commit 4fccb0b
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/sources/openjpeg/large_image_source_openjpeg/__init__.py b/sources/openjpeg/large_image_source_openjpeg/__init__.py
@@ -18,6 +18,7 @@
 
 import glymur
 import math
+import multiprocessing
 import PIL.Image
 import six
 import warnings
@@ -96,6 +97,7 @@ def __init__(self, path, **kwargs):
             self._openjpeg = glymur.Jp2k(largeImagePath)
         except glymur.jp2box.InvalidJp2kError:
             raise TileSourceException('File cannot be opened via Glymur and OpenJPEG.')
+        glymur.set_option('lib.num_threads', multiprocessing.cpu_count())
         self._openjpegHandles = queue.LifoQueue()
         for _ in range(self._maxOpenHandles - 1):
             self._openjpegHandles.put(None)