Using Sun Grid Engine for Cadence applications

Hi all
Anybody have experience of using Sun Grid Engine sofware with
Cadence applications? I would need the scripts for any applications if
there's any. Also, i would like to find out on the characteristics of
most cadence applications so as for me to see how SGE can fit in.

Thank you for your help

Justin

 

Justin,
I am sorry I can t help you, but am interested in your results. Please
post your conclusions in the NG.

 

fogh
I will need some prior knowledge of cadence application before i
could do that.Would you be able to help me on getting more information
about cadence applications characteristics? (eg workflow for
applications,submission module).

thank you

 

Justin:
We have been asking Cadence for years now to support SGE. Please open
a SR on sourcelink and help us push.

You can't submit jobs with SGE from the GUI but you should have no
problem submitting jobs from the command line.

For example if you want to submit a spectre job:
1. go to the netlist directory
2. qsub runSimulation

If you want to submit an assura run:
1. qsub assura whatever.rsf

I think in assura 31 you can specify a command to be prefixed to the
assura run. You should be able to specify qsub there.
---
Erik

 

Justin:
See previous posts entitled:
SGE Linux
Distributing Computing

 

Erik,

Thanks for your reply, i thought i won't get any after so many days

How do i go about doing this? Please advice. I would strongly want
that collaboration to happen.

Yup, i do have some sample scripts with me through command line based
job and i understand that GUI job is not possible. But i would like to
find out what would i need to know (eg workflow) of these applications
before we could see Candence do something about it? Do they have a
common pattern of how each processes works Correct me if i'm wrong, do
we have to talk to the developers to ask them for a closer integration
with SGE. I was thinking along the line of DRMAA when the next version
of SGE is released.

Also, i would like to find out on the characteristic of different
cadence program (eg support batch processing?, computer
intensive?,support parallel programming) ....so that to better
understand which platform would be best for which applications

Thanks for your help

 

Justin:

You need to get an account at sourcelink.cadence.com. Once in, click
on create service request and ask for SGE support for all Cadence
tools.

Analog Artist:
Cadence has somthing called LBS for load balancing system I think.
They also support LSF. They have a GUI to enter LSF options. In my
opinion this is the wrong approach as the submission form doesn't have
all the available options that one could enter from the command line
for LSF. For regular spectre simulations I would like to see just a
form field where I could enter a LSF or SGE command that would be
prefixed to the run command. I would also like it to put the results
in run1, run2, ... as it does now so that I wouldn't overwrite results
if I ran the same schematic twice. If they just prefixed the run
command with either the SGE or LSF submission command it would run
today. One problem is the parametric analysis and optimization
submissions. I don't know how they submit each of the parametric runs
internally. I have something similar but it submits ocean scripts for
each run. In short, I would like to see Cadence take a hands off
approach. I don't want to use any Cadence developed load balancing
tools. I don't want to use any Cadence job monitoring. I just want
them to figure out how they can transparently run Cadence jobs with
either LSF or SGE. I think it is the responsibility of the one
submitting the job to know all the submission options and shouldn't be
limited by an incomplete form. I want to monitor the progress of the
jobs with the utilities provided by LSF or SGE as I do with any job
(Cadence or not).

Assura:
In version 3.1 you can specify a list of queues to be used. In this
case I think they did a good job in that it just prefixes the assura
run with the LSF submission command. I have not tried SGE but it
should work.

AMS Designer:
I would like the option to submit the job with bsub -I when running in
GUI mode. If not GUI mode I would like to prefix the job with the LSF
or SGE run command. As far as I know this is still not possible today
from the AMS GUI.

 

Hi Justin,

we already use spectre with SGE.
We are not able to perform parallel simulations like in MonteCarlo and so on
in the grid as the implementation from Cadence is only suitable for LSF, but
every user pressing the "Simulate" Button in Artist pushes its jobs in the
Grid and even the users on slower Solaris workstations therefore use the
compute power of fast linux-boxes.

The only thing we did for that was to write a "spectre"-wrapper and take
care that it is in the path before the "real" spectre (but I guess you can
define the path to spectre in a .cdsenv-variable instead). I didn't try so
far but we should be able to run SpectreVerilog on another machine with this
wrapper too (we should only need to change the workstation-name in the
commandline-args to "localhost").

Ulrich