Answered by:
HPC Performance and Scalability - How many Compute Nodes (Workstations) can be added to a Head Node

Question
-
Microsoft HPC 2012 R2 Update 3 is something new to us and we recently discovered that having 2700 computes nodes on one head node seems problematic at a point where schedule task on the server can't complete in the appropriate amount of time. The computes nodes are CAD Workstations and the Head Node is a virtual machine with Intel Xeon E5-2680 Quad Core of 2.7 GHz with 16 GB of RAM.
A test was done by adding 2 more CPUs but even if the CPU usage is around 50 to 70% most of the time the Schedule Task never complete successfully. The cluster size was reduce to 500 and now the system is working but a lot of CPU is required and also a lot of RAM.
What would be required to be able to use our 2700 compute nodes on the same head node ? How can the system be sized properly to work with all available compute nodes ?
Friday, April 13, 2018 1:54 PM
Answers
-
Could you reach us through hpcpack@microsoft.com
To scale to 2700 compute nodes, you need carefully define your SQL server and Headnode. You could share with us your current configuration. And I could also share our recommendation through our scale testing (10K+ cores)
Qiufang Shi
- Marked as answer by Acadien75 Tuesday, April 17, 2018 3:53 AM
Tuesday, April 17, 2018 3:38 AM
All replies
-
Could you reach us through hpcpack@microsoft.com
To scale to 2700 compute nodes, you need carefully define your SQL server and Headnode. You could share with us your current configuration. And I could also share our recommendation through our scale testing (10K+ cores)
Qiufang Shi
- Marked as answer by Acadien75 Tuesday, April 17, 2018 3:53 AM
Tuesday, April 17, 2018 3:38 AM -
Thanks for the email address. I will establish initial contact using my business email account tomorrow and provide any necessary details.Tuesday, April 17, 2018 3:53 AM
-
Can you tell me the configuration information you are looking for and if their is a script I can use to extract what you are looking for ?Tuesday, April 17, 2018 3:56 AM
-
For example:
the CPU, RAM, whether SSD, SQL edition, whether it is remote DB. Usually the bottleneck is on SQL.
Qiufang Shi
Tuesday, April 17, 2018 7:53 AM -
An email was sent to hpcpack@microsoft.com to initiate the discussion/investigation.Tuesday, April 17, 2018 3:06 PM