Kellen Sunderland created MXNET-324:
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Summary: Use default nvcc when configured nvcc not present.
Key: MXNET-324
URL: https://issues.apache.org/jira/browse/MXNET-324
Project: Apache MXNet
Issue Type: Bug
Reporter: Kellen Sunderland
This fixes an issue with the nvcc path resolution logic in the Makefile
([#10553|https://github.com/apache/incubator-mxnet/issues/10553]). In prior
releases the makefile would use $(USE_CUDA_PATH)/bin/nvcc for nvcc no matter
what was specified in config. For some users this was actually a good thing if
'nvcc' was not on the path, as it would specify the binary with an absolute
path. However the behaviour in the prior release caused issues when cross
compiling. You may have an arm and x86 cuda path specified, and you need to
select the correct nvcc for your platform.
This PR checks the configured nvcc to ensure it is actually on the path. If it
isn't it will set the binary to the absolute path. This should match the
behaviour of the prior release for users without nvcc on the path, and also
allow for cross-compilation.
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