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netcdf + idl: posixio.c:265: px_pgin: Assertion ... [message #75734]

Wed, 13 April 2011 05:37

R.Bauer
Messages: 1424
Registered: November 1998

Senior Member

Hi

we found a terrible netCDF problem which makes it hard to use a given
network storage for reading many many files.

It is the same problem for reading as discussed in that thread
https://www.unidata.ucar.edu/mailing_lists/archives/netcdfgr oup
/2011/msg00108.html

The workaround is to to introduce a caching routine for copying the file
to a local storage with IO Block: 4096 size.

We have some users which got a bit crazy because of random

idl: posixio.c:265: px_pgin: Assertion `*posp == ((off_t)(-1)) || *posp
== lseek(nciop->fd, 0, 1)' failed.
Aborted

while accessing a few hundred files.

cheers
Reimar

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