Abaqus job running slower on expensive servers than on a basic PC

Huiw · October 22, 2021, 05:06

hi everyone
Our laboratory has two server ：
dual 7H12 16*32G 3200 (mem r/w 310GB/s 230GB/s)
dual 8180 12*16G 2666 (mem r/w 233GB/s 160GB/s)

I have a brick structure analysis job in abaqus2020 standard under win10 .The strange thing is that no matter how I change the option (such as bios set,core or mem used) they are all slower than my pc(9700 16g).
I think the server should be faster than my pc.did anyone know what should I do?

flotus1 · October 22, 2021, 10:45

Tell us more: what kind of job is it? Element count, anything special about it like e.g. thousands of contacts...
How do you run it? Particularly how many cores are you trying to use on each machine?
And please quantify how much slower we are talking about.

Huiw · October 23, 2021, 02:43

Thanks for your reply！
it's a seismic wave time history analysis of reinforced concrete frame structure,the model units 450,000 .abaqus standard solver ,nothing special.
Usually it's two times slower (same core 6~8,100% mem,no gpgpu).i guess abaqus needs to set some special parameters in Win10，I tried to use centos7, they have the same speed as i7 in the case of 16 cores(7H12).

Huiw · October 23, 2021, 10:32

I tried to submit the job on the new servers.
dual 6348 16*32 3200
it's very fast even i don’t set any parameters.Maybe abaqus standard solver need CPU up to 4.0G frequency to be fast？is too ridiculous

Cinek_Poland · October 25, 2021, 03:50

Maybe MPI ? Have you installed MPI ? ? Have you tried run simulation on other windows than 10 ? or linux ?

evcelica · October 25, 2021, 14:51

If the problem is CPU limited, and not memory bandwidth limited. then your laptop likely has a higher CPU frequency and would be faster. It also has no intra-processor communication, though that shouldn't matter much.

What about the working directory? Are these local directories on the server, or are they having to use a much slower network drive? What drives are being used on each machine?

Is hyperthreading enabled on the servers? This can hurt performance.

Huiw · October 25, 2021, 23:54

Win10.I tried use intel MPI and link to abaqus, but it didn't work.

Huiw · October 26, 2021, 00:10

Quote:

Originally Posted by evcelica

If the problem is CPU limited, and not memory bandwidth limited. then your laptop likely has a higher CPU frequency and would be faster. It also has no intra-processor communication, though that shouldn't matter much.

What about the working directory? Are these local directories on the server, or are they having to use a much slower network drive? What drives are being used on each machine?

Is hyperthreading enabled on the servers? This can hurt performance.

i closed hyperthreading and virtualization.But it didn’t make the speed increase significantly.our working directories on the local HDD.i'm not sure perform will better on SSDs.

wkernkamp · February 7, 2023, 14:56

We have abaqus running fast on the 9700 series PC, slow on two servers that should have much better performance, and then very fast on a new server that should have comparable performance to the other servers.

The problem is therefore with the two under performing servers. So far, insufficient performance tracking information was provided on these servers to trouble shoot. There is no reason why the third server 6348 cpus does not have the same problem. So it would be helpful to know the exact number of cores that the problem ran on in each case. Also, whether these servers were possibly doing other work loads at the same time.

Until huiw does his homework, it is no use throwing darts trying to answer his question.

October 22, 2021, 05:06	Abaqus job running slower on expensive servers than on a basic PC	#1
Huiw New Member Join Date: Oct 2021 Posts: 5 Rep Power: 4	hi everyone Our laboratory has two server ： dual 7H12 1632G 3200 (mem r/w 310GB/s 230GB/s) dual 8180 1216G 2666 (mem r/w 233GB/s 160GB/s) I have a brick structure analysis job in abaqus2020 standard under win10 .The strange thing is that no matter how I change the option (such as bios set,core or mem used) they are all slower than my pc(9700 16g). I think the server should be faster than my pc.did anyone know what should I do?

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October 22, 2021, 10:45		#2
flotus1 Super Moderator Alex Join Date: Jun 2012 Location: Germany Posts: 3,399 Rep Power: 46	Tell us more: what kind of job is it? Element count, anything special about it like e.g. thousands of contacts... How do you run it? Particularly how many cores are you trying to use on each machine? And please quantify how much slower we are talking about.

October 23, 2021, 02:43		#3
Huiw New Member Join Date: Oct 2021 Posts: 5 Rep Power: 4	Thanks for your reply！ it's a seismic wave time history analysis of reinforced concrete frame structure,the model units 450,000 .abaqus standard solver ,nothing special. Usually it's two times slower (same core 6~8,100% mem,no gpgpu).i guess abaqus needs to set some special parameters in Win10，I tried to use centos7, they have the same speed as i7 in the case of 16 cores(7H12).

October 23, 2021, 10:32		#4
Huiw New Member Join Date: Oct 2021 Posts: 5 Rep Power: 4	I tried to submit the job on the new servers. dual 6348 16*32 3200 it's very fast even i don’t set any parameters.Maybe abaqus standard solver need CPU up to 4.0G frequency to be fast？is too ridiculous

October 25, 2021, 03:50		#5
Cinek_Poland New Member Join Date: Aug 2021 Posts: 22 Rep Power: 4	Maybe MPI ? Have you installed MPI ? ? Have you tried run simulation on other windows than 10 ? or linux ?

October 25, 2021, 14:51		#6
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,167 Rep Power: 23	If the problem is CPU limited, and not memory bandwidth limited. then your laptop likely has a higher CPU frequency and would be faster. It also has no intra-processor communication, though that shouldn't matter much. What about the working directory? Are these local directories on the server, or are they having to use a much slower network drive? What drives are being used on each machine? Is hyperthreading enabled on the servers? This can hurt performance.

October 25, 2021, 23:54		#7
Huiw New Member Join Date: Oct 2021 Posts: 5 Rep Power: 4	Win10.I tried use intel MPI and link to abaqus, but it didn't work.

February 7, 2023, 14:56		#9
wkernkamp Senior Member Will Kernkamp Join Date: Jun 2014 Posts: 316 Rep Power: 12	We have abaqus running fast on the 9700 series PC, slow on two servers that should have much better performance, and then very fast on a new server that should have comparable performance to the other servers. The problem is therefore with the two under performing servers. So far, insufficient performance tracking information was provided on these servers to trouble shoot. There is no reason why the third server 6348 cpus does not have the same problem. So it would be helpful to know the exact number of cores that the problem ran on in each case. Also, whether these servers were possibly doing other work loads at the same time. Until huiw does his homework, it is no use throwing darts trying to answer his question.