My first post here
I just wanted to share my experience with plotting using ‘nossd’
- using RTX A2000 6GB I am getting 2min20sec-2min-30sec on average. I also have RTX A2000 12GB and it behaves exactly the same as the 6GB variant same time for plotting.
- using RTX A4000 (which is the bigger brother of A2000) I am getting 5minutes(!!!) so twice as slow. This is using a graphics card which is supposed to be 50% faster than A2000, and consumes twice more power.
- using RTX 4060 8GB I am getting around 3min10sec. Still slower than the A2000, while it is supposed to be a faster card… And consumes more power as well.
- using RTX 4000 8GB I am getting 4min30 sec for C15. Something’s wrong, as I am getting better times with this card, than A4000 which should be faster…
These tests were performed on a Dell NX3230 server (which is similar to R730XD with 12 x 3.5" bays). And yes, I connected the power cable for the GPUs which requires it. The A2000 doesn’t require external power (it draws only 70W from the PCI-E slot directly). The A4000 requires 140W (and uses a 6-pin power cable) and the RTX 4060 requires around 110W (and uses a 8-pin power cable).
Note: I also own Supermicro and HP servers and Dell P720 worksation, HP Z4/Z6 G4 workstation and the numbers are similar to those, with some small differences.
2nd Note: I am using ramdisk as destination and a modified plow script to move the plots off to the hard drives from the ramdisk. So disk I/O is not an issue in any of those scenarios.
Any idea why this weird behavior? I can add screenshots/pictures for those interested in.
BTW, for farming, the numbers look much different, pretty much in line with the expectations (at least, judging from the tests that the nossd script performs).
I can try posting numbers for farming as well, for anyone interested in this.