Just one more sentence. We are using version 0.9.7 on our server. when I tried to use: f=nc.Dataset('file.nc') to open the file (either big or small) within ipython, it works fine. Then when I tried to do %run cal_cmi_big.py, core dumped error. but %run cal_cmi_small.py works fine. The cal_cmi_big.py did work several days ago, I still have the file generated by this script in my directory.
cheers, Chao 2012/5/27 Chao YUE <chaoyue...@gmail.com> > Dear Jeff, > > Thanks a lot for your reply. I think it might be related with the memory > management on our sever. But anyway, as you suggested, I open an issue on > netcdf4-python.google.co <http://netcdf4-python.google.com>m. you can > find the data and script on ftp://ftp.cea.fr/incoming/y2k01/chaoyue/. The > cal_cmi_big.py gave the core dumped error, in which I tried to operate with > big files (~2G). The cal_cmi_small.py works fine, which handles data only > ~25M (a subset of big files). I used a small function (which use NetCDF4) > in the script to read and write nc data with NetCDF4. You can also find > this function in ncfunc.py. I tested all the script and data before I > upload on our ftp. > > thanks again for your help, > > cheers, > > Chao > > > 2012/5/26 Jeff Whitaker <jsw...@fastmail.fm> > >> On 5/26/12 5:51 AM, Chao YUE wrote: >> >> Dear all, >> >> Previously I am able to run a script on our server but now it gave me a >> Segmentation fault (core dumped) error. >> try I tried the script with same type of netcdf file but with much >> smaller file size and it works. So I think the error is related with memory >> stuff. >> I guess it's because our system administrator make some change somewhere >> and that cause my problem? >> the file size that cause the error to appear is 2.6G (in the script I >> read this file with NetCDF4 to numpy array and make some manipulation), >> the small one without error is only 48M. >> >> >> Chao: Without seeing your script, there's not much I can say. I suggest >> opening an issue at netcdf4-python.google.com, including your script as >> an attachment. You'll probably have to post the data file somewhere >> (dropbox perhaps?) so I can run the script that triggers the segfault. >> >> -Jeff >> > > > > -- > > *********************************************************************************** > Chao YUE > Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL) > UMR 1572 CEA-CNRS-UVSQ > Batiment 712 - Pe 119 > 91191 GIF Sur YVETTE Cedex > Tel: (33) 01 69 08 29 02; Fax:01.69.08.77.16 > > ************************************************************************************ > > -- *********************************************************************************** Chao YUE Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL) UMR 1572 CEA-CNRS-UVSQ Batiment 712 - Pe 119 91191 GIF Sur YVETTE Cedex Tel: (33) 01 69 08 29 02; Fax:01.69.08.77.16 ************************************************************************************
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