What was our favourite phrase in the olden days?
I've got this FITS file ...
Is the FITS file duff or just too big?
BITPIX -32, 21000x21000 pixels, file size just under 1700
million byte. Debian lenny amd64, 2 GByte of RAM, lehuakona
without any patches.
fits2ndf spends several minutes on the task - gradually
ramping up its resident memory to 1.6+ GByte, then fails with
!! FTGPVx: Error reading the DATA array in FITS file W4.fits. Error was:
! Error reading data buffer from file:
! W4.fits
! Error reading elements 1 thru 441000000 from image (ffgcle).
! FITS2NDF: Error converting a FITS file into an NDF.
! Application exit status SAI__ERROR, Error
I have an NDF of about the right size. ndftrace and hdstrace
look happy about it. gaia displays the NDF, it is mostly zero,
but has a few strips of data (a star field apparently, not
random noise from uninitialised memory).
I should add, ds9 tries for about 30 s to open the FITS file
then falls over with a bus error. gaia disappears immediately
when asked to open the FITS file.
--
Horst Meyerdierks Royal Observatory Edinburgh
Un*x/Network Manager [log in to unmask]
http://www.roe.ac.uk/~hme/ +44-131-6688-309
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