Dirk suggested I move this thread over here. I am trying to get a multithreaded (multi CPU) version of ATLAS working with R, and have been unable, thus far, to get it working. Has anyone gotten an multithreaded version of ATLAS working on Debian (64 bit)? I've tried this:
apt-get source atlas -t unstable cd atlas-3.8.3 DEFAULTS=n fakeroot debian/rules custom but it is APPEARING to only install a single threaded version of ATLAS. Running the test: a = matrix(rnorm(5000*5000), 5000, 5000) b = matrix(rnorm(5000*5000), 5000, 5000) c = a%*%b only shows a spike on a single CPU. Thanks to Dirk, I can confirm R is using the ATLAS I have configured/compiled/installed above, so that (I don't think) is the issue. --j P.S. I also have an email in with the ATLAS maintainers to see if they have some insight as well, but I figured I'd cast a wider net. _______________________________________________ R-SIG-Debian mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-debian
