W. David Dagenhart authored
There are three different changes to static and global variables. Where possible they are made const. Variables used to generate default seeds are made atomic so different threads will get different seeds. Others are made thread local. The only exceptions are ones in single thread tests that are left as is. I also left the ones in the classes that use rand and drand48 as is because those classes are inherently thread unsafe for other reasons.0873ffe7
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