Re: [Rd] R-devel (r81196) hanging at dchisq(large) (PR#13309)

2021-11-24 Thread Avraham Adler
On Wed, Nov 24, 2021 at 11:45 AM Martin Maechler wrote: > > > Avraham Adler on Thu, 18 Nov 2021 02:18:54 + writes: > > > Hello. I have isolated the issue: it is the > > fused-multiply-add instruction set (FMA on Intel > > processors). Running -march=skylake -mno-fma not only

Re: [Rd] R-devel (r81196) hanging at dchisq(large) (PR#13309)

2021-11-24 Thread Martin Maechler
> Avraham Adler on Thu, 18 Nov 2021 02:18:54 + writes: > Hello. I have isolated the issue: it is the > fused-multiply-add instruction set (FMA on Intel > processors). Running -march=skylake -mno-fma not only does > not hang, but passes make check-all (using R's native

Re: [Rd] R-devel (r81196) hanging at dchisq(large) (PR#13309)

2021-11-17 Thread Avraham Adler
Hello. I have isolated the issue: it is the fused-multiply-add instruction set (FMA on Intel processors). Running -march=skylake -mno-fma not only does not hang, but passes make check-all (using R's native BLAS). My intuition remains that something in the new more precise ebd0 code used in

Re: [Rd] R-devel (r81196) hanging at dchisq(large) (PR#13309)

2021-11-17 Thread Avraham Adler
Hello, Martin et. al. I apologize for top posting, but I believe I have tracked down the difference why last time my build worked and now it hangs on `dchisq(c(Inf, 1e80, 1e50, 1e40), df=10, ncp=1)`. and it's NOT the BLAS. I built against both 3.15 AND R's vanilla and it hung both times. The

Re: [Rd] R-devel (r81196) hanging at dchisq(large) (PR#13309)

2021-11-16 Thread Avraham Adler
On Tue, Nov 16, 2021 at 10:42 PM Kevin Ushey wrote: > > Do you see this same hang in a build of R with debug symbols? Can you > try running R with GDB, or even WinDbg or another debugger, to see > what the call stack looks like when the hang occurs? Does the hang > depend on the number of threads

Re: [Rd] R-devel (r81196) hanging at dchisq(large) (PR#13309)

2021-11-16 Thread Kevin Ushey
Do you see this same hang in a build of R with debug symbols? Can you try running R with GDB, or even WinDbg or another debugger, to see what the call stack looks like when the hang occurs? Does the hang depend on the number of threads used by OpenBLAS? On the off chance it's relevant, I've seen

Re: [Rd] R-devel (r81196) hanging at dchisq(large) (PR#13309)

2021-11-16 Thread Avraham Adler
On Tue, Nov 16, 2021 at 8:43 AM Martin Maechler wrote: > > > Avraham Adler > > on Tue, 16 Nov 2021 02:35:56 + writes: > > > I am building r-devel on Windows 10 64bit using Jeroen's mingw system, > > and I am finding that my make check-devel hangs on the above issue. >

Re: [Rd] R-devel (r81196) hanging at dchisq(large) (PR#13309)

2021-11-16 Thread Martin Maechler
> Avraham Adler > on Tue, 16 Nov 2021 02:35:56 + writes: > I am building r-devel on Windows 10 64bit using Jeroen's mingw system, > and I am finding that my make check-devel hangs on the above issue. > Everything is vanila except that I am using OpenBLAS 0.3.18. I

[Rd] R-devel (r81196) hanging at dchisq(large) (PR#13309)

2021-11-15 Thread Avraham Adler
I am building r-devel on Windows 10 64bit using Jeroen's mingw system, and I am finding that my make check-devel hangs on the above issue. Everything is vanila except that I am using OpenBLAS 0.3.18. I have been using OpenBLAS for over a decade and have not had this issue before. Is there anything