[Matplotlib-users] Matplotlib 1.5.1 - Function pcolormesh throws Segmentation Fault

[Claude F. <cl...@br...>]

Dear colleagues,

 I've done a build from source of latest Matplotlib package and deployed 
it at our IBM z13 machine (s390x). It uses the current release 1.5.1. 
During the unit tests I found an issue with a test case from NOAA which 
uses a pcolormesh draw function with basemap. 

Example 2: Plot data from an NWW3 GRiB2 file - [ here:  
http://polar.ncep.noaa.gov/waves/examples/usingpython.shtml ] 

The following line is causing a Segmentation fault error even when adding 
an 8GB swap memory to the process: 

cs = m.pcolormesh(x,y,data,shading='flat',cmap=plt.cm.jet)

I also tryed to execute other, similar samples that use pcolormesh, but 
receiving the same error. Is this a known issue or might it be be related 
to the memory environment ? Any hints how to debug this error? 


Regards,

Claude Falbriard
Certified IT Specialist L2 - Middleware


Phone: 55-13-99662-5703 | Mobile: 55-13-98117-3316
E-mail: cl...@br...