Just a public service announcement :) This error has been bothering me on and off lately, I hadn’t connected it to the change to using mtune=native and march=native in makevars on windows, but at least in my case this is apparently still a problem. Using Win7 64 and a Xeon e-5 1650.

Can I get a native <- system("g++ -dM -E - -march=native", intern = TRUE) basic <- system("g++ -dM -E - ", intern = TRUE) setdiff(native, basic) ?

No. g++ not in path, then when I run it in CMD from ming_64\bin it’s just hung.

In CMD, it would be something like C:\Rtools\mingw_64\bin> echo "" | g++ -dM -E -march=native - but I guess you would have to write it to a file and read it into R to figure out what are the differences with the -march=native option.

I probably should have just temp broken my path in the first place. [1] "#define __SSE4_1__ 1" "#define __POPCNT__ 1" "#define __corei7_avx 1" "#define __sandybridge 1" [5] "#define __XSAVEOPT__ 1" "#define __BIGGEST_ALIGNMENT__ 32" "#define __…

If you do -march=core2 does it crash?

Is there any difference betweeen echo "" | g++ -dM -E -march=core2 - echo "" | g++ -dM -E - ?

core2 <- system("g++ -dM -E - -march=core2 ", intern = TRUE) basic <- system("g++ -dM -E - ", intern = TRUE) setdiff(core2, basic) [1] "#define __core2__ 1" "#define __SSSE3__ 1" "#define __core2 1" native <- system("g++ -dM -E - -march=native ", intern = TRUE) core2 <- system("g++ -dM -E - -m…

I am getting this error as well. I have two models, one that does an analytical solution for an ode system, and another that does a numerical solution. The analytical one compiles and samples just fine; the numerical one compiles but sometimes gives many warnings about closing unused connections aft…

Error in unserialize, rstan 2.18, problems with native mtune and march

General

bgoodri November 5, 2018, 5:50pm 17

OK. I guess we might get a bit of speed from enabling SSSE3 instructions by default with -march=core2 and users can add -march=native themselves if it does not crash on their computer.

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Error in unserialize, rstan 2.18, problems with native mtune and march

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