Mosaic Pre-Run Checkout Procedure

Check VNCs

(1) check that VNC is running on both ctioa0 and ctioa8 (no need to restart them if they are already running). The commands and results should look like the following...

- ON ctioa0

mosaic@ctioa0% ps aux | grep vnc 

mosaic 406 0.0 0.8 2244 2984 ? S Apr 14 85:57 Xvnc :9 -desktop X -http
mosaic 408 0.0 0.0 36 0 ? IW Apr 14 0:00 /bin/sh /arc/mosaic/.vnc
mosaic 11581 0.0 0.1 56 232 pb S 11:33 0:00 grep vnc

 

- ON ctioa8

mosaic@ctioa8% ps aux | grep vnc

mosaic 6281 0.0 0.1 4304 2720 pts/0 S 10:49 0:01 Xvnc :9 -desktop
mosaic 6541 0.0 0.2 6124 4568 pts/0 S 11:00 0:11 Xvnc :8 -desktop
mosaic 7465 0.0 0.0 1728 592 pts/7 S 11:23 0:00 grep vnc

 

Check PVMs

(2) check that pvm is working and correctly configured on both machines

- ON ctioa0

mosaic@ctioa0% pvm
pvmd already running.
pvm> conf
2 hosts, 2 data formats @@

HOST DTID ARCH SPEED
ctioa0 40000 SUN4 1000
ctioa8 c0000 LINUX 1000

pvm> quit

pvmd still running.

- ON ctioa8

mosaic@ctioa8% pvm
pvmd already running.
pvm> conf 
2 hosts, 2 data formats

HOST DTID ARCH SPEED
ctioa0 40000 SUN4 1000
ctioa8 c0000 LINUX 1000

pvm> quit

pvmd still running.

If EITHER does not look like this, it is best to simply start from the beginning. This involves killing the pvm processes on BOTH ctioa0 and ctioa8 and then restarting them. To do this, follow the instructions on restarting the pvm.

Check out Arcon

Start up Arcon on ctioa0 and watch for errors in the Arcon Console window.

Also check the TCS and MSE boxes in the Mosaic GUI.

 

Check STB

 

Check data

  • Noise in zero
  • Gain and read noise

 

Check flat field lamps and counts

Confirm that counts listed on web page for given exposure times are approximately correct.

 

Last updated May 5, 2002