Experimental Physics and
Industrial Control System

I fixed the issues with the st*.cmd* files in iocHDF5Test and pushed to Github.

 

Ø  I am able to create a HDF5 file (for either ADSimDetector or ADURL) as requested by the test5.sh script (I cloned the logic of this for the ADURL module).

Ø  These files are large (>~100MB), and clearly contain the simulated and URL data, respectively.

Ø  I’m able to open the file(s) with the hdfview application (after closing the IOC, to avoid any file write/read share issues).

Ø  But, I’m unable to view any of the data because there are no attribute nodes under the ‘test5_001.h5’ root, in the viewer.

Ø  Viewing the ‘properties’ on the ‘test5_001.h5’ node in hdfview, shows no attributes and no datasets.

 

 

I cannot reproduce that problem.  I just started the simDetector with the new st.cmd in the iocHDF5Test directory.  I then ran test5.sh script.  It produced these 2 files:

-rw-rw-r-- 1 epics domain users  69M Nov 19 11:03 test5_001.h5

-rw-rw-r-- 1 epics domain users 212K Nov 19 11:03 test5_001.txt

 

I then opened test5_001.h5 in HDF5.  I was able to display the data in hdfview with no problems as shown in the screen shot below.

 

 

Mark

 

 

 

Hi Mark(s),

 

I am using simDetector 2-8, which I believe is the most recent.

My comment about the st.cmd script referred to the iocHDF5Test sub-folder (which I was seeking to exercise), and not the main iocSimDetector folder (where the script is correct).

- I’m sorry that was unclear.

 

Are you talking about EPICS_CA_MAX_ARRAY_BYTES?

It is set as an environment variable which is applied to shells through /etc/profile.d/custom.sh.

 

NB, data visualisation with ImageJ works for me with the ADURL module with the values given, but fails for the SimDetector module (with or without attempting to use HDF5).

 

Cheers,

 

Peter.

 

 

 

But did it make any difference? You might have to set this both in the ADURL and SIMDetector soft IOC st,cmd *AND* in for environment for IMAGEJ to work.

 

 

Hi Mark,

 

I have the latest sources.

My comment about the paths refers to the iocHDF5Test sub-folder that I was working with, not the iocSimDetector folder (where it’s correct).

I’m sorry this wasn’t clear.

 

I has set EPICS_CA_MAX_ARRAY_BYTES to 30000000 which is overkill I think, so I reduced it to 10000000.

 

Cheers,

 

Peter.

 

 

 

I don’t think that you have the latest sources for ADSimDetector since the paths are correct on the sources that I have.

 

If ImageJ   doesn’t work, chances are the value for

 

EPICS_CA_MAX_ARRAY_BYTES

 

Is either not set or set to be a value too small for the actual image data.