[Touch-packages] [Bug 1978640] Re: FFTW_PRESERVE_INPUT does not always preserve input

2022-06-14 Thread Mark Borgerding 
** Changed in: fftw3 (Ubuntu)
   Status: New => Invalid

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https://bugs.launchpad.net/bugs/1978640

Title:
  FFTW_PRESERVE_INPUT does not always preserve input

Status in fftw3 package in Ubuntu:
  Invalid

Bug description:
  libfftw3-dev:
Installed: (none)
Candidate: 3.3.8-2ubuntu8
Version table:
   3.3.8-2ubuntu8 500
  500 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages

  program to reproduce bug on Ubuntu 20.04 or 22.04 follows below

  expected: success (no assert) because the input was preserved
  observed: assert because the input was not preserved

  
  ```test_fftw_preserve.cc 
  #include 
  #include 
  #include 
  #include "assert.h"

  int main()
  {
  typedef std::complex cpx;
  int nfft = 125;
  fftwf_plan plan = fftwf_plan_many_dft(1,,1,
  NULL, NULL,1,nfft,
  NULL, NULL,1,nfft,
  FFTW_FORWARD,
  FFTW_ESTIMATE|FFTW_PRESERVE_INPUT|FFTW_UNALIGNED);

  std::vector in(nfft,cpx(1,2));
  std::vector in_copied(in);
  std::vector out(nfft);
  fftwf_execute_dft(plan, 
reinterpret_cast(in.data()),reinterpret_cast(out.data()));

  assert(in == in_copied);

  fftwf_destroy_plan(plan);
  return 0;
  }
  ```

  To run:
  ```
  $ g++ test_fftw_preserve.cc -lfftw3f && ./a.out
  a.out: test_fftw_preserve.cc:21: int main(): Assertion `in == in_copied' 
failed.
  Aborted (core dumped)
  ```

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[Touch-packages] [Bug 1978640] Re: FFTW_PRESERVE_INPUT does not always preserve input

2022-06-14 Thread Mark Borgerding 
I just realized that feeding NULL to the planner is not a supported
mode.  I withdraw the bug report.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to fftw3 in Ubuntu.
https://bugs.launchpad.net/bugs/1978640

Title:
  FFTW_PRESERVE_INPUT does not always preserve input

Status in fftw3 package in Ubuntu:
  New

Bug description:
  libfftw3-dev:
Installed: (none)
Candidate: 3.3.8-2ubuntu8
Version table:
   3.3.8-2ubuntu8 500
  500 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages

  program to reproduce bug on Ubuntu 20.04 or 22.04 follows below

  expected: success (no assert) because the input was preserved
  observed: assert because the input was not preserved

  
  ```test_fftw_preserve.cc 
  #include 
  #include 
  #include 
  #include "assert.h"

  int main()
  {
  typedef std::complex cpx;
  int nfft = 125;
  fftwf_plan plan = fftwf_plan_many_dft(1,,1,
  NULL, NULL,1,nfft,
  NULL, NULL,1,nfft,
  FFTW_FORWARD,
  FFTW_ESTIMATE|FFTW_PRESERVE_INPUT|FFTW_UNALIGNED);

  std::vector in(nfft,cpx(1,2));
  std::vector in_copied(in);
  std::vector out(nfft);
  fftwf_execute_dft(plan, 
reinterpret_cast(in.data()),reinterpret_cast(out.data()));

  assert(in == in_copied);

  fftwf_destroy_plan(plan);
  return 0;
  }
  ```

  To run:
  ```
  $ g++ test_fftw_preserve.cc -lfftw3f && ./a.out
  a.out: test_fftw_preserve.cc:21: int main(): Assertion `in == in_copied' 
failed.
  Aborted (core dumped)
  ```

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[Touch-packages] [Bug 1978640] Re: FFTW_PRESERVE_INPUT does not always preserve input

2022-06-14 Thread Mark Borgerding 
Additional details:

If `nfft` is changed from 125 to 128, the bug is not shown.

If `fftwf_plan_many_dft` is called with buffer pointers, the bug is not
shown.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to fftw3 in Ubuntu.
https://bugs.launchpad.net/bugs/1978640

Title:
  FFTW_PRESERVE_INPUT does not always preserve input

Status in fftw3 package in Ubuntu:
  New

Bug description:
  libfftw3-dev:
Installed: (none)
Candidate: 3.3.8-2ubuntu8
Version table:
   3.3.8-2ubuntu8 500
  500 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages

  program to reproduce bug on Ubuntu 20.04 or 22.04 follows below

  expected: success (no assert) because the input was preserved
  observed: assert because the input was not preserved

  
  ```test_fftw_preserve.cc 
  #include 
  #include 
  #include 
  #include "assert.h"

  int main()
  {
  typedef std::complex cpx;
  int nfft = 125;
  fftwf_plan plan = fftwf_plan_many_dft(1,,1,
  NULL, NULL,1,nfft,
  NULL, NULL,1,nfft,
  FFTW_FORWARD,
  FFTW_ESTIMATE|FFTW_PRESERVE_INPUT|FFTW_UNALIGNED);

  std::vector in(nfft,cpx(1,2));
  std::vector in_copied(in);
  std::vector out(nfft);
  fftwf_execute_dft(plan, 
reinterpret_cast(in.data()),reinterpret_cast(out.data()));

  assert(in == in_copied);

  fftwf_destroy_plan(plan);
  return 0;
  }
  ```

  To run:
  ```
  $ g++ test_fftw_preserve.cc -lfftw3f && ./a.out
  a.out: test_fftw_preserve.cc:21: int main(): Assertion `in == in_copied' 
failed.
  Aborted (core dumped)
  ```

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/fftw3/+bug/1978640/+subscriptions


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