[Octave-bug-tracker] [bug #63384] Error for "inv(NaN)" with LAPACK 3.11.0

[Dmitri A. Sergatskov]

Follow-up Comment #21, bug #63384 (project octave):

Also:


$ gfortran -O2 -march=native -mtune=native bug-63384.f  -lflexiblas
$ ./a.out 
 x = 
                       NaN                       NaN
                       NaN                       NaN
 anorm =                        NaN
 dgetrf info:            0
 ipiv = 
           1           2
 dgecon info:            0
 rcond =                        NaN
 dgetri info:            0
 xinv = 
                       NaN                       NaN
                       NaN                       NaN
$ LD_PRELOAD=/usr/lib64/liblapack.so ./a.out 
 x = 
                       NaN                       NaN
                       NaN                       NaN
 anorm =                        NaN
 dgetrf info:            0
 ipiv = 
           1           2
 dgecon info:            0
 rcond =    0.0000000000000000     
 dgetri info:            0
 xinv = 
                       NaN                       NaN
                       NaN                       NaN
$ ldd a.out 
        linux-vdso.so.1 (0x00007fff94a65000)
        libflexiblas.so.3 => /lib64/libflexiblas.so.3 (0x00007f8ebe400000)
        libgfortran.so.5 => /lib64/libgfortran.so.5 (0x00007f8ebe000000)
        libm.so.6 => /lib64/libm.so.6 (0x00007f8ebe324000)
        libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f8ebe864000)
        libquadmath.so.0 => /lib64/libquadmath.so.0 (0x00007f8ebe81a000)
        libc.so.6 => /lib64/libc.so.6 (0x00007f8ebdc00000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f8ebe8a3000)



Dmitri.
-- 





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