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RE: MRP nightly run

JBINGHAM

Member
RE: MRP nightly run

Have you tried reorganizing the files f3411, f3412, f3413. They are HUGE,
and often full of deleted records. This may help speed up operations. The
reorg will take a LONG time, try to schedule over a weekend or when the
machine is not busy. Then perhaps put it in to run weekly. We also CLEAR the
entire files monthly. DANGEROUS, but easier than changing Dream writer
options, then forgetting to change them back again.

Jill Bingham
Johnson & Johnson Professional Products South Africa
A7.3 cum8

Views expressed not necessarily that of my employer.
 
RE: MRP nightly run

Our DW options are set to clear F3411, F3412 and F3413 every night. Why is
it considered dangerous to clear the files?
 

lpryor

Active Member
RE: MRP nightly run

We also run MRP nightly, over roughly 18000 items. It takes approx. 3
hours. This is our main run over a majority of our manufactured items,
with a 1 level bill. This version is the 1st MRP we run each night and we
clear the file (opt. 24). We also do not have the processing option set to
print. (opt. 22) We also run smaller batches after this (where we DO NOT
clear the file) and we do have the print set.
There are many variables to check, but the number of items, the size of
your bills and the two processing options mentioned above are the key
suspects when it runs a long time.

Lynn Pryor
Client Svcs. Mgr.
Murata Electronics
a7.3 cum11




JBINGHAM
<JBINGHAM@jppza.jn To: jdeworldml@jdelist.com
j.com> cc:
Sent by: Subject: RE: MRP nightly run
owner-jdeworldml@j
delist.com


05/25/2001 04:02
AM
Please respond to
jdeworld






Have you tried reorganizing the files f3411, f3412, f3413. They are HUGE,
and often full of deleted records. This may help speed up operations. The
reorg will take a LONG time, try to schedule over a weekend or when the
machine is not busy. Then perhaps put it in to run weekly. We also CLEAR
the
entire files monthly. DANGEROUS, but easier than changing Dream writer
options, then forgetting to change them back again.

Jill Bingham
Johnson & Johnson Professional Products South Africa
A7.3 cum8

Views expressed not necessarily that of my employer.




--------------------------
 

scott_parker

Reputable Poster
We had the same problem.

Make sure you know the memory pool size of the JobQ that it is running in.

I can run a full blown MRP in batch from my user id during peak usage times and it only takes about 21 mins. My batch jobs go to a jobq with no memory restrictions.

Our Nightly Run goes to a different Jobq and takes 68 mins.

Before our New AS/400 we were on an S20-2178 with 4 processors. MRP took anywhere from 3-4 hours.

Now we are on an i series with only 2 processors. (but more Ram)

Scott Parker
Grote Industries, LLC.
WorldSoftware Version 8.1.2 AS/400 V4R5
 
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