CTM - Hardware Requirement

[former_member906762]

Hello Gurus,

Can you please me with that is the hardware requirement for CTM for Small, Medium and Large Optimization . Currently our CTM jobs take more than 12 Hrs.

Regards,

Nick

[Former Member · Accepted solution]

Nick,

I have never seen definitive recommendations from SAP on this subject. In the end, the duration of the CTM run depends upon what are the actual bottlenecks in your planning system.

For general info about CTM, including improving performance, start with OSS note  http://service.sap.com/sap/support/notes/855229

Although this note is somewhat old, many of the topics are still valid.  There are a few more notes as well, seek and ye shall find.

Best Regards,

DB49.

[former_member906762 · Accepted solution]

Hello DB49,

Thank you for your response . I have gone through the note earlier and looking into that but with respect to Hardware . Currently we have 4GB RAM but is SAP recommendation for Large optimization 4GB or 8GB or 16GB . I am trying to understand if our hardware is not optimum.

Regards,

Nick

[Former Member · Accepted solution]

Nick,

You normally answer RAM questions by having your Basis and hardware people analyze memory usage during a run.

Best Regards,

DB49

[former_member906762 · Accepted solution]

This is something i found by SAP . Is this applicable to SNP CTM as well?

https://websmp206.sap-ag.de/~sapidb/011000358700001144692010E#Sizing

1. S : Small SAP SCM Optimization Model:
   Continuous Model : with up to 1.000.000 continuous variables and 500.000 constraints.
   Discrete Model : with up to 100.000 continuous variables, 5.000 discrete variables and 50.000 constraints.
   The Optimization server requirements are:
   1 CPU core per parallel Optimizer run
   ≥ 4 GB RAM
   ≥ 80 GB Hard Disk
2. M : Medium SAP SCM Optimization Model:
   Continuous Model : with up to 2.000.000 continuous variables and 1.000.000 constraints.
   Discrete Model : with up to 500.000 continuous variables, 50.000 discrete variables and 250.000 constraints.
   The Optimization server requirements are :
   1 CPU core per parallel Optimizer run
   ≥ 8 GB RAM
   ≥ 80 GB Hard Disk
3. L : Large SCM Optimization Model:
   For models Larger than medium Size M, the Optimization server requirements are:
   1 CPU core per parallel Optimizer run
   ≥ 16 GB RAM
   ≥ 80 GB Hard Disk

[Former Member · Accepted solution]

Nick,

I don't know.  It sounds like they are focusing on Optimization and not CTM.

IMHO you should analyze what your existing CTM bottlenecks are before you buy iron.

Best Regards,

DB49