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Messages - ClassicHasClass

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226
GPU Compute / Accelerators / Re: AMD OpenCL / ROCm
« on: October 22, 2021, 07:58:15 pm »
Can you post a couple links to the specific places in the source you're looking at?

Modern OpenPOWER is a superset of PowerPC, so any 64-bit PowerPC instruction reference will broadly apply. POWER9 is compliant to ISA 3.0. https://openpowerfoundation.org/?resource_lib=power-isa-version-3-0

227
Talos II / Re: Order processing time
« on: October 22, 2021, 07:55:19 pm »
No, though they're both good signs. In Stock means they literally have it in the warehouse right now, in a box, ready to go. Full Production means they're being made now (not merely to order) and will be in the warehouse.

228
Talos II / Re: Order processing time
« on: October 22, 2021, 07:25:55 pm »
It's US to US, so if it's in stock my experience is they've been good with getting it out (three systems here).

229
General CPU Discussion / Re: max memory speeds
« on: October 22, 2021, 07:10:29 pm »
As a general rule 3200MHz should run fine at 2666MHz, but I don't see any 3200MHz RAM on https://wiki.raptorcs.com/wiki/POWER9_Hardware_Compatibility_List/Memory . That doesn't mean it doesn't work, but you'd be a pioneer.

Also, I want to correct a miscount in my prior post: each pair of DIMM slots in the T2/T2 Lite is a channel, so the T2/T2 Lite have 4 per CPU. However, the pair of DIMMs in that pair of slots counts as one, so it's still 1:1. The Blackbird, however, is indeed one channel per slot.

230
General CPU Discussion / Re: POWER9 water cooling kit
« on: October 20, 2021, 12:40:00 pm »
No, I saw that; just checking it didn't change. Thanks!

231
General CPU Discussion / Re: max memory speeds
« on: October 19, 2021, 04:39:02 pm »
My understanding (perhaps Raptor can clarify) is that both are right, in a manner of speaking. You get the full 2666MHz with a single DIMM per channel, 2400 for 2, 2133 for 4. However, the controller for each processor has 8 channels and no Raptor system has more than 8 DIMM slots per CPU, so it's physically impossible to get multiple DIMMs on one channel. On a large system with more than 8 DIMM slots per CPU socket, however, it's possible.

232
General CPU Discussion / Re: POWER9 water cooling kit
« on: October 19, 2021, 04:33:15 pm »
Are you planning to sell fluid as well, or if not, what's your specific recommendation? How good is the mounting pressure on these?

233
Applications and Porting / Re: Porting Godot 4 to POWER9 and the Libre-SOC.
« on: September 20, 2021, 06:00:10 pm »
I'm surprised Embree works on the M1, given that it's an Intel product (unless you mean not natively, i.e. through Rosetta 2).

234
Do you see anything on the serial port, either connecting directly to it, or from the web BMC interface?

235
What happens if you try to mount the media in the Petitboot shell? Do you see files?

236
Applications and Porting / Re: OpenVPN Client for ppc64el
« on: July 21, 2021, 06:09:29 pm »
If you built it yourself, yes, you would need to build updates as well.

237
Applications and Porting / Re: OpenVPN Client for ppc64el
« on: July 17, 2021, 07:08:48 pm »
Stupid question but just checking: is the .ovpn file in the directory you ran that command from?

238
Talos II / Re: RAM clock with full channels
« on: July 17, 2021, 07:05:11 pm »
Speed decreases with the number of DIMMs per channel. You get the full 2666MHz with a single DIMM per channel, 2400 for 2, 2133 for 4. However, the controller for each processor has 8 channels, and the T2 has 8 DIMM slots per CPU, so I don't think you're going to have a problem as long as you have both CPU sockets populated.

Here's what lshw reports on my 64GB dual-8 Talos II (the workstation I'm typing on):

Code: [Select]
     *-memory
          description: System memory
          physical id: 0
          size: 64GiB
        *-bank:0
             description: RDIMM DDR4 2666 MHz (0.4ns)
             product: 36ASF2G72PZ-2G6F1
             vendor: Micron Technology
             physical id: 0
             version: 0000,19 20,25
             serial: 0xf054945f
             slot: UOPWR.A100059-Node0-DIMM2
             size: 16GiB
             clock: 2666MHz (0.4ns)
             capabilities: ecc spd-1.1
             configuration: errordetection=ecc rank=2
        *-bank:1
             description: RDIMM DDR4 2666 MHz (0.4ns)
             product: 36ASF2G72PZ-2G6F1
             vendor: Micron Technology
             physical id: 1
             version: 0000,19 07,0F
             serial: 0x20ab81d0
             slot: UOPWR.A100059-Node0-DIMM6
             size: 16GiB
             clock: 2666MHz (0.4ns)
             capabilities: ecc spd-1.1
             configuration: errordetection=ecc rank=2
        *-bank:2
             description: RDIMM DDR4 2666 MHz (0.4ns)
             product: 36ASF2G72PZ-2G6F1
             vendor: Micron Technology
             physical id: 2
             version: 0000,19 20,25
             serial: 0xf054948a
             slot: UOPWR.A100059-Node0-DIMM10
             size: 16GiB
             clock: 2666MHz (0.4ns)
             capabilities: ecc spd-1.1
             configuration: errordetection=ecc rank=2
        *-bank:3
             description: RDIMM DDR4 2666 MHz (0.4ns)
             product: 36ASF2G72PZ-2G6F1
             vendor: Micron Technology
             physical id: 3
             version: 0000,19 07,0F
             serial: 0x20abb8b7
             slot: UOPWR.A100059-Node0-DIMM14
             size: 16GiB
             clock: 2666MHz (0.4ns)
             capabilities: ecc spd-1.1
             configuration: errordetection=ecc rank=2

239
I've found I have fewer issues if I don't use gdm at all. Can you do a text boot and startx from there?

240
That's what I mean: you can coerce X11 into running the ASPEED at full 1920x1080 but not Wayland, at least not with any means known to me.

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