Amen Zwa's Image Server

Thanks to Amen Zwa we have an ``image server'' for viewing graphic output from the MasPar, and other remote hosts. The following are available:

To save you from having to re-compile things, a pre-complied verion of the image client "isend" is available on the MasPar in the directory ~motteler/imgclt, and a pre-compiled version of the image server for SGIs is available for downloading. You can test the image server across the goddard-umbc link, from an SGI workstation, as follows.

On the UMBC workstation:

make sure you have the image server binary "imgsvr", and the image server colormap, "nbody_cmap", on the SGI
start the image server with the command "imgsvr -c nbody_cmap"

On the MasPar at Goddard:

make sure you have the image client "isend" and the test program "itest", from ~motteler/imgclt on the MasPar
start the image client with the command "itest | isend -s xxx", where "xxx" is the internet address of the SGI workstation

After about twenty seconds, you should see a "spectrum" in the image server window, which then flips from a horizontal to a vertical orientation roughly once every 20 seconds, depending on network bandwidth and latency. You may need to ^C both ends, to kill things, since itest will keep sending images. Normally, isend will terminate when there is no more input, and imgsvr will terminate when isend terminates.

Once you are confident the link works, you can substitute your n-body program for the test program itest.