#76 digifits fails to create file when output name is specified

[Ryan Lynch]

Description: I am trying to use digifits to produce psrfits
search-mode data from data in the GUPPI RAW format. When I use the
the -o command to specify the output name I get an error almost
immediately.

Command: digifits -o ./guppi_58626_J1125+7819_0013 -D 11.217356 -do_dedisp -F 256:D -t 40.96e-6 -p 4 -b 8 -K ../guppi_58626_J1125+7819_0013.0000.raw

Output:

digifits: requested tsamp=4.096e-05 rate=781250
actual tsamp=0 (tscrunch=0)
digifits: input data not detected
digifits: performing coherent dedispersion at 11.2174
digifits: creating 256 by 128 back channel filterbank
digifits: dedispersion filter length=128 (minimum=32) complex samples
digifits: 256 channel dedispersing filterbank requires 128 samples
digifits: blocksize=128 samples or 2.125 MB

Error::stack
dsp::SingleThread::run
dsp::SingleThread::run
Pulsar::Archive::unload
Error::FailedSys
Error::message
failed rename - No such file or directory

[Willem van Straten]

clue:

cd dspsr
./greps rename

yields

Kernel/Formats/fits/FITSOutputFile.C:      if (rename( mangled_output_filename.c_str(), output_filename.c_str()))
Kernel/Formats/fits/dsp/FITSOutputFile.h:    //! Use a mangled file name for output; rename on file close

[Andrew Jameson]

FITSOutputFile uses a mangled filename to when the file is being written, and then renames the file to the correct name once the file writing has completed.

[Ryan Lynch]

I tested this on commit d9c25565 and it seems to be working now.

Thanks!
Ryan

On 11/14/19 5:38 PM, Andrew Jameson wrote:

• status: open --> closed-fixed
• assigned_to: Andrew Jameson
• Comment:

Fixed in commit: 463b36
https://sourceforge.net/p/dspsr/code/ci/46ebe69f377394371e3c2691c66aa7f675695eec/

---

[bugs:#76] https://sourceforge.net/p/dspsr/bugs/76/ digifits fails
to create file when output name is specified

Status: closed-fixed
Group: version_1.0
Created: Wed Nov 13, 2019 08:49 PM UTC by Ryan Lynch
Last Updated: Thu Nov 14, 2019 10:37 PM UTC
Owner: Andrew Jameson

Description: I am trying to use digifits to produce psrfits
search-mode data from data in the GUPPI RAW format. When I use the
the -o command to specify the output name I get an error almost
immediately.

Command: |digifits -o ./guppi_58626_J1125+7819_0013 -D 11.217356
-do_dedisp -F 256:D -t 40.96e-6 -p 4 -b 8 -K
../guppi_58626_J1125+7819_0013.0000.raw|

Output:

digifits: requested tsamp=4.096e-05 rate=781250
actual tsamp=0 (tscrunch=0)
digifits: input data not detected
digifits: performing coherent dedispersion at 11.2174
digifits: creating 256 by 128 back channel filterbank
digifits: dedispersion filter length=128 (minimum=32) complex samples
digifits: 256 channel dedispersing filterbank requires 128 samples
digifits: blocksize=128 samples or 2.125 MB

Error::stack
dsp::SingleThread::run
dsp::SingleThread::run
Pulsar::Archive::unload
Error::FailedSys
Error::message
failed rename - No such file or directory

---

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--
Ryan Lynch

[Andrew Jameson]

Fixed in commit: 463b36