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https://reviews.apache.org/r/48374/
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Review request for mesos and Benjamin Mahler.


Bugs: MESOS-5562
    https://issues.apache.org/jira/browse/MESOS-5562


Repository: mesos


Description
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Previously, the `NvidiaGpuAllocator` component was created directly
inside the `NvidiaGpuIsolatorProcess` even though it was designed to
be used by multiple containerizers at the same time. To allow for
simultaneous access, we created a new `NvidiaComponents` class to hold
a reference to a shared `NvidiaGpuAllocator` instance and pass it to
each containerizer as it is created. This component can easily be
extended to include more cross-containerizer components later on.

We create the `NvidiaComponents` instance inside
`Containerizer::create()` and pass it to both the docker containerizer
and the mesos containerizer when they are created.  The docker
containerizer currently doesn't do anything with this information, but
its interface has been updated to accomodate it. The mesos
containerizer has been updated to pass this all the way down to the
`NvidiaGpuIsolatorProcess` and exploit it.


Diffs
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  src/Makefile.am 29525c960e8fb2448260efdd774fd8fc1d68047b 
  src/slave/containerizer/containerizer.cpp 
faa0c789dda8a6f36fdb6217b0bae270b6b8f2e2 
  src/slave/containerizer/docker.hpp 311dca23ac17fb533866aba1de2b81d750bbe6df 
  src/slave/containerizer/docker.cpp 63efbe6f45958d44d60fe4a7fea816f5fb0457b2 
  src/slave/containerizer/mesos/containerizer.hpp 
a1a00020668f6da8d611f26e5637afffc87d09ba 
  src/slave/containerizer/mesos/containerizer.cpp 
c7b9744463cf8e1921dcb5e2b7dec7d4e2c0e45f 
  src/slave/containerizer/mesos/isolators/gpu/components.hpp PRE-CREATION 
  src/slave/containerizer/mesos/isolators/gpu/nvidia.hpp 
f290e3c1d1114698039a505e972793dc325c7100 
  src/slave/containerizer/mesos/isolators/gpu/nvidia.cpp 
7849e518af448d9557ca4d6de4ccaba8bc572992 

Diff: https://reviews.apache.org/r/48374/diff/


Testing
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GTEST_FILTER="" make -j check && sudo GTEST_FILTER="*NVIDIA*" src/mesos-tests


Thanks,

Kevin Klues

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