Messages

31

GPU Compute / Accelerators / Re: Talos II GPU slot preference

« on: October 31, 2022, 06:30:28 am »

I finally took a look and I'm running with a custom 5.10.92 kernel with patches described here:

https://wiki.raptorcs.com/wiki/Operating_System_Specific_Workarounds/Debian#Debian-Specific_Issues_and_Workarounds

This is something I did at the start of the year and didn't realise I was still on the same old kernel. AFAIK this is fixed already in the upstream.

32

Talos II / Re: Arctic Tern bracket?

« on: October 26, 2022, 10:18:50 am »

Raptor said:

"We're working up a bracket solution and will be happy to send one out free of charge to anyone that has a carrier card once it is completed."

33

GPU Compute / Accelerators / Re: Talos II GPU slot preference

« on: October 21, 2022, 12:43:38 pm »

@rheaplex I'll let you know next week (it's at work).

34

Applications and Porting / Re: Clion, VSCode, IDE options?

« on: September 27, 2022, 10:53:19 am »

I took another look at CLion and followed the (brief) instructions for getting it running on non-supported CPUs. It's kinda lengthy to get it all going (it needs the JetBrains JDK building, which needs boostrapping with JDK19, which itself needs bootstrapping with JDK18... which needs bootstrapping with JDK17, which at least is available in Debian's repo).

The only thing I've found not to work is the clangd integration (which needs JetBrain's own) but everything else works great. It's a Java IDE but I guess I have to do something with my CPUs...

I didn't try VSCode, so I don't know how much work it is to getting running on Debian.

But to answer myself or anyone else wondering which native IDEs work on Power9 with Debian: Eclipse CDT and CLion, and so far I'm quite happy with CLion.

35

GPU Compute / Accelerators / Re: Talos II GPU slot preference

« on: September 26, 2022, 11:01:44 am »

I should swap it back in the name of science and see what unscientific feeling it gives me…

I tried a few different AMD cards in the past few weeks too, and wasn’t impressed with any until this happy accident.

36

GPU Compute / Accelerators / Talos II GPU slot preference

« on: September 26, 2022, 10:08:20 am »

I have an odd observation and I'd be interested if others have the same, or it's just a bunch of coincidences. Whilst juggling my PCIe cards around to find room for the Arctic Tern board I moved my graphics card (a WX9100) from CPU 2 to CPU 1, and suddenly the machine feels snappier.

I'm running Debian 11 and CPU 1 appears to be doing most of the work (judging by which runs the hottest) so I'm wondering if that's what makes the difference. I always had the impression the graphics were laggy, but now all of a sudden the system feels a lot more usable. That said, the OS received updates, the internal VGA is now disabled, probably other stuff, and the PSU was replaced (the logs were full of MasterDetectionFailure and I got it down to a PSU fault).

37

Applications and Porting / Re: Clion, VSCode, IDE options?

« on: September 26, 2022, 09:33:42 am »

Resurrecting this...

I've been using Eclipse CDT for a while now and it's a little clunky. Importing a CMake project works fine-ish (backed by a Makefile), it builds but is full of erroneous errors, though the debugger works as expected so that's good. Trying to get a CMake/Ninja project to work, to have a multi-core build, has the same 100s of errors to ignore but won't let me debug. In general it's usable of sorts, and has good SVN and Git integration, but I'd really like something better.

mparnaudeau mentioned CLion, which I'd be very interested in using, but last I read it was missing the debugger adapter or some other closed-source component? Do you have more info on this?

MPC7500 mentions VSCode on Void being up-to-date, but I settled on running Debian so I'm not able to try this.

As for other options, I tried Kate with CMake and it wasn't a good experience. It builds and lets me set breakpoints, but then inspecting variables seems to only work via gdb.

38

Talos II / Re: Arctic Tern bracket?

« on: September 12, 2022, 12:51:18 am »

That's what I was thinking of doing. Probably not any time soon though.

39

Talos II / Arctic Tern bracket?

« on: September 09, 2022, 11:07:42 am »

My Arctic Tern board arrived but doesn't have a PCIe bracket, and looking at the photos they don't appear to do so. I'm guessing others have them now, how is it supposed to hold in place securely when the mobo is vertically mounted?

40

General Discussion / Re: HighPoint SSD7505 RAID tools for ppc?

« on: August 11, 2022, 06:29:00 am »

I have a HighPoint SSD7580A and the same issue. I'm running the drives without RAID for the time being, but was also planning on using Linux on an x86 to configure the card.

41

GPU Compute / Accelerators / Re: AMD GPU at boot

« on: July 30, 2022, 08:15:52 am »

I tried the Kate IDE, for which CMake has a generator, but the step debugger didn't work for me (but it could build). I took a look at Eclipse but only for Java (I maintain some legacy Java stuff at work) but I'm a C++ guy.

I didn't think VSCode was up-to-date? And I'll try Netbeans - I forget these Java-based IDEs have native builders.

42

GPU Compute / Accelerators / Re: AMD GPU at boot

« on: July 30, 2022, 05:14:43 am »

I'm using the Talos II at work actually for work, and specifically for crunching numbers (lots of RAM, lots of cores).

Short-ish version of the story: I bought a machine partially to test the possibility of rolling them out to our Linux deep learning teams, and partially out of personal interest. The T2s are too finicky to give them out to others but it ticks a lot of boxes for me personally, plus getting workstation CPUs is difficult, waiting months to get Threadrippers (and supply has totally dried up here now) so I did the little work required to get my tools running on POWER and started using it. I've still not found a good IDE for native dev, so I'm working in Visual Studio on my Windows desktop and then running tasks on the T2.

As for the comparisons with the 64c/128t 3990X, Friday was a slow day ahead of the public holiday here and I thought I'd take a look. On a regular 3990X the code was taking 15s (and on the OC'd one 13s), vs the 19s on my T2 (which given I couldn't keep the cores at 100% is very good), but I spent some time to tune for the specific thread group requirement of the 3990X, taking the timing down to 8s and a very comfortable lead!

As for optimisations, to this code probably not. Once finished it'll run once to precalculate a series of numbers which will go into the end product (a texture tool).

A graph would've been better though.

43

GPU Compute / Accelerators / Re: Necessary firmware for Navi14

« on: July 29, 2022, 03:09:57 pm »

Hi! I haven't but I'm planning the same for a W5700 which should be identical, so I'm also interested.

44

GPU Compute / Accelerators / Re: AMD GPU at boot

« on: July 29, 2022, 03:05:52 pm »

To add to the numbers, a MacBook Pro with M1 Max runs the same in 47s.

When we finally get some 5995X TRs at work I'll run the same on there (I have a feeling it won't beat the OC'd 3990X).

(If anyone has an OC'd Power or something else esoteric I can share the source - it's a project that'll be open sourced after it's shipped anyway, it's a graphics tool.)

45

General OpenPOWER Discussion / Re: Arctic Tern user manual posted

« on: July 29, 2022, 02:58:00 pm »

I have some wild speculation on why there are two module slots...

Wild speculation is always good!