how to compile on linux64

[virophagesp]

I keep getting errors from precompiled stuff
and also many tutorials are outdated

[shafferjohn]

Sorry, @virophagesp , I didn't compile sucessfully too.
but the following maybe helpful, tell me please if it works

1. yum install gmp-devel or compile from source code
2. yum install hwloc-devel or compile fomr source code: https://github.com/open-mpi/hwloc
3. compile gwnum

cd gwnum
cp linux64/* .
make -f make64

4. compile mprime

cd ../linux64
make

[HyperWinX]

Sorry, @virophagesp , I didn't compile sucessfully too. but the following maybe helpful, tell me please if it works

1. yum install gmp-devel or compile from source code
2. yum install hwloc-devel or compile fomr source code: https://github.com/open-mpi/hwloc
3. compile gwnum

cd gwnum
cp linux64/* .
make -f make64
4. compile mprime

cd ../linux64
make

Hey! Im trying to build this too, and after lots of attempts i still cant compile. Your commands (apparently mprime compiling stage) fails on linkage with errors about missing -lcurl and -lhwloc. What you have to do: before running final make, you should open the makefile, and remove all -Wl,-B* flags from LIBS. Apparently, -Wl,-Bstatic means that the next libraries should be linked statically, and that happens with libhwloc and libcurl. Forcing dynamic linkage should't make any real impact on performance. If you want, i can make a PR with the fix - please, include this in README. By the way, newly built Prime95 is completely unusable. Meh.

[Artoria2e5]

I guess the static thing is a holdover from the days when dynamic linking had real tangible performance overhead. Or perhaps some consideration for being able to run it without installing additional things is made. In either case I am not sure if you can persuade the authors to go dynamic anytime soon... Anyways gmp-static does seem to exist, but probably not the other two.

[Artoria2e5]

Oh, also, the closer-to-official repository is https://github.com/primesearch/Prime95. It's more official in the sense that @gwoltman personally updates the code. I don't think he uses git though.

In any case the preferred place to ask questions is mersenneforum.org. I know, I know, it's registration-needed for read, but once you've done that and got through this whole ordeal meant to stop AI crawlers it's all quite easy to use.

[gwoltman]

Hi John, How does setting Mac OS X affinities work? Don't hwloc queries in commonc.c end up setting OS_CAN_SET_AFFINITY to false? Regards, George

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On Sun, Nov 9, 2025 at 2:23 AM Mingye Wang ***@***.***> wrote: *Artoria2e5* left a comment (shafferjohn/Prime95#2) <#2 (comment)> Oh, also, the closer-to-official repository is https://github.com/primesearch/Prime95. It's more official in the sense that @gwoltman <https://github.com/gwoltman> personally updates the code. I don't think he uses git though. In any case the preferred place to ask questions is mersenneforum.org. I know, I know, it's registration-needed for read, but once you've done that and got through this whole ordeal meant to stop AI crawlers it's all quite easy to use. — Reply to this email directly, view it on GitHub <#2 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AFJ4KMYPURWJUG4RNBC4KUT333TWVAVCNFSM6AAAAACEGCEIGGVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTKMBXGYYDANZRGQ> . You are receiving this because you were mentioned.Message ID: ***@***.***>