[GitHub] piiswrong closed pull request #9441: Limit the test_nccl.py to run on 8 GPUs

[GitBox <gi...@apache.org>]

piiswrong closed pull request #9441: Limit the test_nccl.py to run on 8 GPUs
URL: https://github.com/apache/incubator-mxnet/pull/9441
 
 
   

This is a PR merged from a forked repository.
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As this is a foreign pull request (from a fork), the diff is supplied
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diff --git a/tests/python/gpu/test_nccl.py b/tests/python/gpu/test_nccl.py
index fd27c0b58b..8e00ba05f7 100644
--- a/tests/python/gpu/test_nccl.py
+++ b/tests/python/gpu/test_nccl.py
@@ -21,7 +21,15 @@
 
 shapes = [(10), (100), (1000), (10000), (100000), (2,2), (2,3,4,5,6,7,8)]
 keys = [1,2,3,4,5,6,7]
-gpus = range(1,1+len(mx.test_utils.list_gpus()))
+num_gpus = len(mx.test_utils.list_gpus())
+
+
+if num_gpus > 8 :
+    print("The machine has {} gpus. We will run the test on 8 gpus.".format(num_gpus))
+    print("There is a limit for all PCI-E hardware on creating number of P2P peers. The limit is 8.")
+    num_gpus = 8;
+
+gpus = range(1,1+num_gpus)
 
 @unittest.skip("Test requires NCCL library installed and enabled during build")
 def test_nccl_pushpull():


 

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