PDG process freeze every 5sec

Forums PDG/TOPs PDG process freeze every 5sec

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hamsteriscoming: Member; 9 posts; Joined: June 2017; Offline

Feb. 7, 2020 7:30 a.m.

Hello.
when I use pdg, process freeze 3sec duration every 5sec
because this issue , its really slow.
loading circle stop every 5sec.

and cpu usage is only around 10%
I want use my machine full power

how can I fix this problems?

thank you

Edited by hamsteriscoming - Feb. 7, 2020 23:54:41

Attachments:
이미지 20200207_002.png (82.0 KB)
이미지 20200207_003.png (26.8 KB)
이미지 20200207_004.png (38.6 KB)


chrisgreb: Member; 603 posts; Joined: Sept. 2016; Offline

Feb. 7, 2020 1:49 p.m.

What version are you using? Could you try enabling the scheduler ‘Houdini Max Threads’ parm in the Job Parms folder and setting it to 0?


hamsteriscoming: Member; 9 posts; Joined: June 2017; Offline

Feb. 8, 2020 3:26 a.m.

chrisgreb
What version are you using? Could you try enabling the scheduler ‘Houdini Max Threads’ parm in the Job Parms folder and setting it to 0?

Thank you for answering.
I changed it to 0 but doesn't work.

houdini : 18.0.287
cpu : ryzen 3700x (8core 16 thread)
ram : 32G
vga : geforce 1080

Attachments:
pdgbug.gif (850.1 KB)


chrisgreb: Member; 603 posts; Joined: Sept. 2016; Offline

Feb. 8, 2020 12:08 p.m.

Could you attach a hip file to demonstrate the problem?


hamsteriscoming: Member; 9 posts; Joined: June 2017; Offline

Feb. 8, 2020 7:53 p.m.

chrisgreb
Could you attach a hip file to demonstrate the problem?

Ofc!
this is my hip file

Attachments:
pdg_v01_02.hipnc (567.0 KB)


hamsteriscoming: Member; 9 posts; Joined: June 2017; Offline

Feb. 9, 2020 9:11 p.m.

I tested another pc.
it has no problem at all.
cpu usage is 100%

this is the spec of another pc
i7-6700 4core 8thread
32gb ram
geforce 1070

cpu of my pc is ryzen 3700x
is it a reason of this issue??


hamsteriscoming: Member; 9 posts; Joined: June 2017; Offline

Feb. 10, 2020 5:50 a.m.

I tried pyro simulation on my pc because I thought the reason is my pc.
but when I tried pyro simulation, cpu usage was 100%.
so there was no problem on my cpu.
it would be a problem of PDG itself.
but I don't know why

Edited by hamsteriscoming - Feb. 10, 2020 07:43:30


chrisgreb: Member; 603 posts; Joined: Sept. 2016; Offline

Feb. 10, 2020 11:10 a.m.

When the work is divided into a large number of jobs on your machine there is the potential for contention to cause overall slow down and glitching. It could be the GPU, CPU or I/O being over subscribed or hitting issues with video drivers etc. As you can see the batch case is very fast because there's minimal overhead. I would try reducing the number of jobs to see where the sweet spot it. You can do this by increasing the ‘Slots per Work Item’.


hamsteriscoming: Member; 9 posts; Joined: June 2017; Offline

Feb. 11, 2020 12:49 a.m.

chrisgreb
When the work is divided into a large number of jobs on your machine there is the potential for contention to cause overall slow down and glitching. It could be the GPU, CPU or I/O being over subscribed or hitting issues with video drivers etc. As you can see the batch case is very fast because there's minimal overhead. I would try reducing the number of jobs to see where the sweet spot it. You can do this by increasing the ‘Slots per Work Item’.

Thank you so much ! finally I understood!
I tested many times and I figured out that same count of number of physical core and slot count makes best performance.

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