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Search took 0.00 seconds. Search: Posts Made By: flotus1
Forum: Hardware March 12, 2020, 15:01
Replies: 59
Views: 14,738
Posted By flotus1
With only one GPU accelerator in the system,...

With only one GPU accelerator in the system, there is not much more you can do.
Some minor tweaks concerning core binding, mostly undocumented, are still possible. But my testing on those was not...
Forum: Hardware March 12, 2020, 14:28
Replies: 59
Views: 14,738
Posted By flotus1
No, only two K6000, currently not in the same...

No, only two K6000, currently not in the same workstation.
I tested different GPUs with low FP64 performance, they actually slowed down the simulation. My attempts at running the simulation in...
Forum: Hardware March 12, 2020, 11:45
Replies: 59
Views: 14,738
Posted By flotus1
I used one of our real-world simulations as a...

I used one of our real-world simulations as a test case.
Or what do you mean by "benchmark"?
Forum: Hardware March 12, 2020, 10:49
Replies: 59
Views: 14,738
Posted By flotus1
Today is your lucky day. I recently had to do...

Today is your lucky day. I recently had to do some testing with GPU acceleration on Abaqus/Standard. Ask me anything ;)

The RTX4000 won't help for GPU acceleration. The solver needs DP...
Forum: Hardware February 20, 2020, 15:12
Replies: 59
Views: 14,738
Posted By flotus1
Yes, I did. On CentOS that is, not RHEL. Both...

Yes, I did. On CentOS that is, not RHEL. Both standard and explicit work as intended. I only used Abaqus 2019 though.
Forum: Hardware February 20, 2020, 13:53
Replies: 59
Views: 14,738
Posted By flotus1
Yes, we use it on OpenSUSE with Intel Xeon...

Yes, we use it on OpenSUSE with Intel Xeon Workstations. But it has it's pitfalls. Installation requires some tweaking beforehand, and newer OS versions have some incompatibilities. According to...
Forum: Hardware February 20, 2020, 06:59
Replies: 59
Views: 14,738
Posted By flotus1
If you want to give it a try on Linux, use...

If you want to give it a try on Linux, use CentOS. Installing Abaqus on other distributions (like Ubuntu or OpenSUSE) requires you to jump through some additional hoops.

You could also dig a...
Forum: Hardware February 19, 2020, 05:40
Replies: 59
Views: 14,738
Posted By flotus1
Ooof...Abaqus 6.14 is ancient. Have you ever...

Ooof...Abaqus 6.14 is ancient. Have you ever considered switching to a more recent version? Windows 10 is not among the tested operating systems. And based on my limited experience, that really means...
Forum: Hardware February 19, 2020, 05:06
Replies: 59
Views: 14,738
Posted By flotus1
So far, I only had the pleasure of using Abaqus...

So far, I only had the pleasure of using Abaqus on Linux :rolleyes:
It can be very picky with the operating system version, but works fine on Epyc Naples. I don't have any Epyc Rome to test. You...
Forum: Hardware January 9, 2020, 04:45
Replies: 59
Views: 14,738
Posted By flotus1
Not sure what you want to hear. If your largest...

Not sure what you want to hear. If your largest jobs require 200GB, you will have to install 256GB of RAM. With only one CPU to start with, that means 8x32GB.
Forum: Hardware January 8, 2020, 10:09
Replies: 59
Views: 14,738
Posted By flotus1
I see, so I misunderstood your thought process. ...

I see, so I misunderstood your thought process.
But still, the 24-core will get you to nearly 90% of the performance of a 32-core in parallel CFD. A single CPU with higher core count is not nearly...
Forum: Hardware January 8, 2020, 09:55
Replies: 59
Views: 14,738
Posted By flotus1
Which country do you live in? Sourcing a...

Which country do you live in? Sourcing a Supermicro H11DSi rev. 2 should be feasible.

So let me see if I understood you correctly: You want to buy a single-socket board now, and then later upgrade...
Forum: Hardware December 30, 2019, 12:47
Replies: 59
Views: 14,738
Posted By flotus1
Mate...8 DIMMS per CPU. 1 CPU: 8 DIMMs 2...

Mate...8 DIMMS per CPU.
1 CPU: 8 DIMMs
2 CPUs: 16 DIMMs
Forum: Hardware December 30, 2019, 12:34
Replies: 59
Views: 14,738
Posted By flotus1
You could do that, but I would strongly advise...

You could do that, but I would strongly advise against it. I am using 16x32GB Samsung DDR4-2666 reg ECC, since they only cost 100€...
Forum: Hardware December 30, 2019, 07:08
Replies: 59
Views: 14,738
Posted By flotus1
There is no point in discussing this (much...

There is no point in discussing this (much broader) topic in this particular context.
Epyc CPUs only work with RDIMM and LRDIMM, and there is basically no RDIMM without ECC. So just buy ECC RDIMM.
Forum: Hardware December 30, 2019, 06:25
Replies: 59
Views: 14,738
Posted By flotus1
You are probably looking at the tested memory...

You are probably looking at the tested memory list. Hence not an exhaustive list of all memory modules that will work with this board. There is a fair amount of standardization involved in memory...
Forum: Hardware December 30, 2019, 06:09
Replies: 59
Views: 14,738
Posted By flotus1
Yes, rev. 2.x supports DDR4-3200. ...

Yes, rev. 2.x supports DDR4-3200.
https://www.supermicro.com/en/products/motherboard/H11DSi-NT
Forum: Hardware December 30, 2019, 05:54
Replies: 59
Views: 14,738
Posted By flotus1
The NT version has built-in 10Gigabit Ethernet....

The NT version has built-in 10Gigabit Ethernet. Otherwise it's the same board.
Forum: Hardware December 29, 2019, 15:09
Replies: 59
Views: 14,738
Posted By flotus1
Same problem. I would probably pick between...

Same problem.
I would probably pick between ASRock Rack RomeD8-2T and Gigabyte MZ32-AR0
Forum: Hardware December 29, 2019, 14:43
Replies: 59
Views: 14,738
Posted By flotus1
Unfortunately, all SP3 motherboards are geared...

Unfortunately, all SP3 motherboards are geared towards server usage.
If there was anything more workstation-y, I would have bought that myself.

For dual-socket, pretty much the only option right...
Forum: Hardware December 29, 2019, 13:53
Replies: 59
Views: 14,738
Posted By flotus1
<https://www.cfd-online.com/Forums/hardware/198378...

<https://www.cfd-online.com/Forums/hardware/198378-openfoam-benchmarks-various-hardware-12.html#post751962
Forum: Hardware December 29, 2019, 12:22
Replies: 59
Views: 14,738
Posted By flotus1
Not if you buy an Epyc with a "P" suffix. These...

Not if you buy an Epyc with a "P" suffix. These only work in a single-CPU configuration.
But there are similarly priced CPUs which are 2P capable, for example the 7352.
Forum: Hardware December 29, 2019, 11:08
Replies: 59
Views: 14,738
Posted By flotus1
Compared to Threadripper, it has twice the amount...

Compared to Threadripper, it has twice the amount of memory channels: 8 vs 4.
With codes based on FVM and FEM, TR CPUs quickly run into a memory bandwidth limit. They start out slightly faster on a...
Forum: Hardware December 29, 2019, 07:44
Replies: 59
Views: 14,738
Posted By flotus1
No, it isn't. If you need a machine mostly for...

No, it isn't.
If you need a machine mostly for FEM, the Epyc lineup is the better choice, both compared to Xeon and Threadripper. For example Epyc 7402P.
There are even some very cheap offers for...
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