Hi Kevin

We are on 7.8 and do a full MRP run every night which normally took about 2.5 hours (125000 items). About 3 months ago the run started to rise over a period of about 8 days to take about 7.5 hours. There was no increase in order intake etc. We logged an incident but between us and Mapics support we were never able to determin the problem. It ran at the extended time for about a week then dropped over 3 days back to the normal run time.




message: 2
date: Thu, 13 Sep 2012 16:21:34 +0000
from: Kevin Fish <Kevin.Fish@xxxxxxxxxxx>
subject: Re: [MAPICS-L] MRP run time

a) Yes, all runs are full runs.
b) Since XA handles the conflicts on its own we don't do anything extra to put it in dedicated mode.
c) In my experience the net change isn't any faster so we always do a full run.


-----Original Message-----
From: mapics-l-bounces@xxxxxxxxxxxx [mailto:mapics-l-bounces@xxxxxxxxxxxx] On Behalf Of Vidal, Concepcion
Sent: Thursday, September 13, 2012 7:16 AM
To: MAPICS ERP System Discussion
Subject: Re: [MAPICS-L] MRP run time


My previous experience points me upto Rel 6 only so I have no idea how a MRP run will perform after that level help but I have few questions:

a) Do you run 2 full MPR executions?
b) Do you run them under a "dedicated mode"?
c) Have you tested running a MRP FULL Run and then an MRP NET run to see how much it takes?

On Rel 6, MRP NET Run was very slow so we were running MRP Full runs only ... and we also had a similar scenario compared to yours in terms of no program modifications during the imp0lementation of this, we do clear and set up few critical files, etc...

Peter Vidal

-----Original Message-----
From: mapics-l-bounces@xxxxxxxxxxxx [mailto:mapics-l-bounces@xxxxxxxxxxxx] On Behalf Of Kevin Fish
Sent: Wednesday, September 12, 2012 5:30 PM
To: MAPICS-L@xxxxxxxxxxxx
Subject: [MAPICS-L] MRP run time

I have a question regarding MRP run time. We've installed ISL and CFL which requires running MRP twice for some warehouses. The total MRP/MPSP run was taking about 4 ? hours. Suddenly it jumped an additional two hours. There's no new data or program changes, we clear recommendations from PLNORD, ORDREV, and REQMTS before each run, we turned off the reports. Short of turning on another processor, what other suggestions are out there to make MRP/MPSP run faster? We are on 7.8.
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