Please see our guide on how to set up and use ClusterShell. You can press ? for help and q to quit.įor multi-node jobs clush can be very useful.
In the case below, the YEPNEE.exe programs are each consuming ~600MB of memory and each fully utilizing one CPU. For Memory usage, the number you are interested in is RES. You can press u, enter your netid, then enter to filter just your processes.
Top runs interactively and shows you live usage statistics. They are also using most of 5 cores, so future jobs like this should request 5 CPUs. Ps reports memory used in kilobytes, so each of the 5 matlab processes is using ~77GiB of RAM. To find the node you should ssh to, ~]$ ps -u$USER -o %cpu,rss,argsĩ2.6 79446140 /gpfs/ysm/apps/hpc/Apps/Matlab/R2016b/bin/glnxa64/MATLAB -dmlworker -nodisplay -r distcomp_evaluate_filetaskĩ4.5 80758040 /gpfs/ysm/apps/hpc/Apps/Matlab/R2016b/bin/glnxa64/MATLAB -dmlworker -nodisplay -r distcomp_evaluate_filetaskĩ2.6 79676460 /gpfs/ysm/apps/hpc/Apps/Matlab/R2016b/bin/glnxa64/MATLAB -dmlworker -nodisplay -r distcomp_evaluate_filetaskĩ2.5 81243364 /gpfs/ysm/apps/hpc/Apps/Matlab/R2016b/bin/glnxa64/MATLAB -dmlworker -nodisplay -r distcomp_evaluate_filetaskĩ3.8 80799668 /gpfs/ysm/apps/hpc/Apps/Matlab/R2016b/bin/glnxa64/MATLAB -dmlworker -nodisplay -r distcomp_evaluate_filetask The easiest way to check the instantaneous memory and CPU usage of a job is to ssh to a compute node your job is running on. If your job is already running, you can check on its usage, but will have to wait until it has finished to find the maximum memory and CPU used. To know how much RAM your job used (and what jobs like it will need in the future), look at the "Maximum resident set size" Running Jobs Minor (reclaiming a frame ) page faults: 30799 Maximum resident set size (kbytes ): 6328 Stress-ng: info: successful run completed in 10.08sĬommand being timed: "stress-ng -cpu 8 -timeout 10s"Įlapsed (wall clock ) time (h:mm:ss or m:ss ): 0:10.09 Worst case scenario, you can use a tool like hwinfo with the option to log to file the measurements and run it in background, and every few seconds you parse the log from hwinfo and extract the info you want.National ~ ]$ /usr/bin/time -v stress-ng -cpu 8 -timeout 10s There's freeware/open source tools and some info is available through windows api.
#CPU AND RAM MONITOR SERIAL#
The benefit is you can also use the 5v from USB cable to power your board.Īnyway, from this point you can write a small application that reads the temperature or fan speeds from somewhere and formats it into some format your arduino understands, sends it through the serial port. You can buy USB to Serial converts that directly output Serial TTL (the 5v version that works directly with microcontrollers), here's examples: Microcontrollers output 5v for 1 (or whatever the voltage the micro is powered with), so if you want to connect directly to the PC, you need to convert this 5v and 0v to -12v and 0v, using a transceiver chip.Īn example of such a chip is MAX232 and here's a schematic which powers the chip from the serial port and converts the negative voltages to 5v : Serial ports use a negative voltage for digital "1" and no voltage for 0.
#CPU AND RAM MONITOR PC#
If your pc no longer has serial ports, you can buy a usb to serial adapter cable / device which creates a serial port. Modern computers may or may not have serial ports. Then, an application on your PC can periodically send the info to your Arduino, which then displays it on screen. The easiest way to connect your Arduino to the PC is through a serial port.
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