Public bug reported:
$ lsb_release -rd
Description: Ubuntu 19.04
Release: 19.04
$ dpkg -l | grep fftw3
ii libfftw3-3:amd64 3.3.8-2
amd64 Library for computing
Fast Fourier Transforms
ii libfftw3-bin 3.3.8-2
amd64 Library for computing
Fast Fourier Transforms - Tools
ii libfftw3-double3:amd64 3.3.8-2
amd64 Library for computing
Fast Fourier Transforms - Double precision
ii libfftw3-long3:amd64 3.3.8-2
amd64 Library for computing
Fast Fourier Transforms - Long precision
ii libfftw3-quad3:amd64 3.3.8-2
amd64 Library for computing
Fast Fourier Transforms - Quad precision
ii libfftw3-single3:amd64 3.3.8-2
amd64 Library for computing
Fast Fourier Transforms - Single precision
Let's see which wisdom file gets loaded:
$ strace fftw-wisdom 2>&1 |grep open
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libfftw3_threads.so.3",
O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libfftw3.so.3", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC) =
3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/etc/fftw/wisdom", O_RDONLY) = 3
Seems legit. What about the other wisdom binaries?
$ strace fftwf-wisdom 2>&1 |grep open
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libfftw3f_threads.so.3",
O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libfftw3f.so.3", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC) =
3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/etc/fftw/wisdomf", O_RDONLY) = 3
Looks good.
$ strace fftwl-wisdom 2>&1 |grep open
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libfftw3l_threads.so.3",
O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libfftw3l.so.3", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC) =
3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/etc/fftw/wisdoml", O_RDONLY) = 3
This is ok too.
$ strace fftwq-wisdom 2>&1 |grep open
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libfftw3q_threads.so.3",
O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libfftw3q.so.3", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC) =
3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libquadmath.so.0", O_RDONLY|O_CLOEXEC)
= 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/etc/fftw/wisdom", O_RDONLY) = 3
LOLWUT?
When I explicitly read the wisdom file with `fftwq-wisdom -w /etc/fftw/wisdomq`
it works
Alas, concatenating all of the wisdom files together doesn't work.
** Affects: fftw3 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1838682
Title:
fftwq-wisdom does not load system quad-precision wisdom file
Status in fftw3 package in Ubuntu:
New
Bug description:
$ lsb_release -rd
Description: Ubuntu 19.04
Release: 19.04
$ dpkg -l | grep fftw3
ii libfftw3-3:amd64 3.3.8-2
amd64 Library for
computing Fast Fourier Transforms
ii libfftw3-bin 3.3.8-2
amd64 Library for
computing Fast Fourier Transforms - Tools
ii libfftw3-double3:amd64 3.3.8-2
amd64 Library for
computing Fast Fourier Transforms - Double precision
ii libfftw3-long3:amd64 3.3.8-2
amd64 Library for
computing Fast Fourier Transforms - Long precision
ii libfftw3-quad3:amd64 3.3.8-2
amd64 Library for
computing Fast Fourier Transforms - Quad precision
ii libfftw3-single3:amd64 3.3.8-2
amd64 Library for
computing Fast Fourier Transforms - Single precision
Let's see which wisdom file gets loaded:
$ strace fftw-wisdom 2>&1 |grep open
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libfftw3_threads.so.3",
O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libfftw3.so.3", O_RDONLY|O_CLOEXEC) =
3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC)
= 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/etc/fftw/wisdom", O_RDONLY) = 3
Seems legit. What about the other wisdom binaries?
$ strace fftwf-wisdom 2>&1 |grep open
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libfftw3f_threads.so.3",
O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libfftw3f.so.3", O_RDONLY|O_CLOEXEC)
= 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC)
= 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/etc/fftw/wisdomf", O_RDONLY) = 3
Looks good.
$ strace fftwl-wisdom 2>&1 |grep open
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libfftw3l_threads.so.3",
O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libfftw3l.so.3", O_RDONLY|O_CLOEXEC)
= 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC)
= 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/etc/fftw/wisdoml", O_RDONLY) = 3
This is ok too.
$ strace fftwq-wisdom 2>&1 |grep open
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libfftw3q_threads.so.3",
O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libfftw3q.so.3", O_RDONLY|O_CLOEXEC)
= 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC)
= 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libquadmath.so.0",
O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
openat(AT_FDCWD, "/etc/fftw/wisdom", O_RDONLY) = 3
LOLWUT?
When I explicitly read the wisdom file with `fftwq-wisdom -w
/etc/fftw/wisdomq` it works
Alas, concatenating all of the wisdom files together doesn't work.
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