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Ancient version of dibol

Ancient version of dibol

Ancient version of dibol

We are running Dibol v4.4.  Yes, I know it is ancient and we will be off of it and on to new problems with SAP by May of 2005.  In the meantime, we realized that we are not using multi-threading and thus not using all of our CPU's when processing.  We do not want to upgrade the Dibol at this point.  What I would like to know is, dows anyone out there know if this version is capable of doing multi-threading and if so, how do we make that happen.  

I truly appreciate everyone's help on this matter.


RE: Ancient version of dibol

Hi Clara,

What version of VMS are you running?
Which VAX processor?


RE: Ancient version of dibol

We are running it on SCO Unix 5.0.6.


RE: Ancient version of dibol

Multithreading is a programming technique that enables an application to handle more than one operation at the same time.
You must be using DBL/Synergy from Synergex.
DBL was/is the replacement for DEC VAX DIBOL, and runs
on various platforms.

What is the software package? (custom, EMS-TCM/CRM...)

Seems like you would have to rewrite the application(s)
to perform multithreading.

Or... do you just want to run more than one program/task
at a time (ie: execute a "SPAWN" or "RUNJB" command).

RE: Ancient version of dibol

We have custom applications.  We are looking to make use of our dual processors.  At this time, we are not looking to rewrite the application.  We intend to be on SAP by May of next year.  


RE: Ancient version of dibol

Well, no matter what the language you use, changing an application from single-threaded to multi-threaded by definition involves some basic design changes.  Synergy does not provide support for multi-threading within a single process, but as KIRBY2000 intimated, you can achieve similar behavior with SPAWN or RUNJB (also see FORK).  However, it won't be a simple task to decide what parts of the application can run asynchronously and how to synchronize them where needed.  But you would have the same issues if you were written in Java, C#, or C++.

Chip Camden
Owner, Camden Software Consulting

RE: Ancient version of dibol


By now they have upgraded to SAP and off the ancient
Dibol v4.4, and whatever the custom application was.

Just a few points:
I don't believe that Dibol v4.4 ever ran on SCO Unix 5.0.6.

It was probably a VAX/VMS box running quietly in a corner
and networked to the Unix box (was this the "dual" processors?).

The software was ancient because they let it be so.
Should have been upgraded to Synergy on OpenVMS, and
upgraded, and upgraded...

but... I guess I better learn SAP/ABAP


RE: Ancient version of dibol

Thank you for responding to this old thread.  We actually are still running our legacy app on SCO 5.0.6 with Dibol as mentioned.  We are due to cut over to SAP August 2nd.  The date has slipped several times.  So consider this thread closed.  

Thanx again


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