[Scilab-users] Headless graphics in scilab: time & memory issues

[Antoine Monmayrant]

Hello all,

In these days of remote working, I need to use again scilab in headless 
mode to generate graphics.

In other words, I connect  in command line only to a remote server where 
scilab is installed and I want it to generate graphics using a 
combination of driver, xinit and xend.

There seems to be some issues with driver/xinit/xend: huge memory 
overhead and long computation time that makes it impossible to generate 
some plots in headless mode.

For example, a simple Sgrayplot that takes ~1 second to plot and save to 
a png in normal mode takes more than 200 seconds and huge amount of ram 
in headless mode (see attached test script).

I also have some plots that works without a problem in normal mode, but 
fail in headless mode because of some memory limitation:

    xend: An error occurred: Unable to create export file, not enough
    memory. Decreasing the number of elements or the size of the figure
    should fix this error.

Is there a way to get around these problems?

Thanks for your help,

Antoine






-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.scilab.org/pipermail/users/attachments/20201203/d95506a1/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: xend_test.sce
Type: application/x-scilab-sce
Size: 486 bytes
Desc: not available
URL: <https://lists.scilab.org/pipermail/users/attachments/20201203/d95506a1/attachment.bin>