DeepSpeed

ceccfa3e - Make AMD/ROCm apex install to /blob to save test/compile time. (#3997)

Make AMD/ROCm apex install to /blob to save test/compile time. (#3997) * Re-use apex builds for AMD * Build MI200 tests on PR * Install on /blob for the first time * Add the venv version * Test * Remove AMD tests from PR - were only needed for tessting.