again somewhat off the subject, but still related.
Windows NT has a command 'at' that allows you to schedule execution of a program to a specified schedule, on a specified machine. In order to use this command you need the 'schedule' service running.
Control Panel -> Services -> Shedule (hit the start/startup button).
Basic usage of this is...
'at computername time command'
so the following
'at ntcmhawkins 01:00 myprogram.exe' would run the program 'myprogram.exe' at 1am on the machine ntcmhawkins.
There are options to run jobs on a regular schedule too.
In NT, goto a command prompt and type 'at /?' for more info...
Hope you find this useful.
Chris Hawkins DesignSpace Architect, ANSYS Inc.
-----Original Message----- Sent: Wednesday, August 25, 1999 3:11 PM To: 'xansys@o...'
Hello all,
Somewhat off this exact subject, but has anyone played around with the "Processor Affinity" on multi-processor machines in NT4.0 with ANSYS? If you right click on the process in the Task Manager, you can set the affinity of a process to execute on either CPU 0 or 1 or both (actually up to 32 processors if you've got 'em). By default, all processors are checked. Assuming ANSYS is solving in the background and is set to use only one processor ( by default or /config,nproc,1), does it thrash the task between the two processors? If you set it to use only one CPU is the machine more responsive for other tasks? Is ANSYS any faster not having as much overhead for thread switching? Are there any perceivable differences?
Regards,
Dale Hollenbaugh FCI Electronics, Inc.
-----Original Message----- Sent: Wednesday, August 25, 1999 1:55 PM To: 'xansys@o...'
You have to open the Task Manager, which can be found by right clicking on the Task Bar.
Regards, Doug Scott The Boeing Company 206-662-2047 206.662.2126 Fax
P.S. I tried the start /low running ANSYS (batch or interactive) and it did set the priority to low. Note that I run ANSYS in the interactive mode from the DOS prompt with a batch file.
> From: Metrisin, Joseph T.[SMTP:metrisin@p...] > Reply To: xansys@o... > Sent: Wednesday, August 25, 1999 10:25 AM > To: 'xansys@o...' > Subject: RE: [xansys] Win NT Platforms
> From: "Metrisin, Joseph T."
> I did find an option on the control panel that allows you to set the > priority for foreground and background processes. Setting the priority > lowest for background processes seemed to have no effect. I will try > Aaron's suggestion. Hopefully that will work.
> > From: Aaron Yakel[SMTP:00077819@b...] > > Sent: Wednesday, August 25, 1999 12:42 PM > > To: xansys@o... > > Subject: Re: [xansys] Win NT Platforms
> > From: "Aaron Yakel" <00077819@b...>
> > This probably doesn't belong in this thread, however, I can't help > > interjecting one quick tip:
> > Joseph wrote: > > > With a single processor, I can't do anything (not even check E-mail) > > when > > an > > > ANSYS job (solution) is running in the background.
> > Open up Task Manager and find ansys in the process list. Right click on > > the > > process and set it to low priority. > > When nothing else is trying to use resources, ansys still runs full speed, > > however, the other applications you want to run will have priority over > > ansys. > > Wouldn't want you to miss out on reading E-mail just because work is > > getting > > in the way :)
> > Have a good day, > > Aaron
> > Aaron Yakel > > University of Nebraska-Lincoln > > Department of Civil Engineering > > W348 Nebraska Hall > > Lincoln, NE 68588
> > Phone: (402) 472-2110 Work > > (402) 484-8549 Home > > Fax: (402) 472-8934 > > Email: 00077819@b...
> > ----- Original Message ----- > > From: Metrisin, Joseph T. > > To: > > Sent: Wednesday, August 25, 1999 10:13 AM > > Subject: RE: [xansys] Win NT Platforms
> > > From: "Metrisin, Joseph T."
> > > I have a Dell 500Mz PIII, 512Mb Ram, 9.1 Gb ATA hard drive. Works > > great. > > I > > > strongly recommend a better graphics card. I have a Diamond Viper 32-Mb > > > card and it is barely adequate. 8Mb just won't cut it. Make sure > > whatever > > > card you get supports OpenGL.
> > > With a single processor, I can't do anything (not even check E-mail) > > when > > an > > > ANSYS job (solution) is running in the background. Two processors is > > > advisable if you can affort it. Also, in hindsight, I wish I would have > > > gotten a bigger hard drive. With all my applications, the O/S, and swap > > > space, I only have around 5-Gb usable.
> > > Lastly, the new CD read/write drives are great. I'm glad I got one.
> > > > I am going to upgrade WinNT box. Does anybody have system > > configuration > > > > that > > > > runs well for ANSYS 5.5. It'll only be running ANSYS and microsoft > > > > programs. > > > > I'm thinking of a single or dual 500MHz processer, 500+MB RAM, 9 GB > > hard > > > > disk and 8 MB graphics card. > > > > Any comments?
> > > > In article <3F8128AC1C8AD2118EF90008C7B171465B67E6@D...>, > > > > Tomaszewski, Paul [DPYUS] writes > > > > >Fern@s...; Yes, I've been watching the recent flurry of Linux news, > > but > > > > not > > > > >ready to make the step since support is not developed. I'll assume > > from > > > > >your medium [<100,000 DOF] vs. large [1,000,000+ DOF] distinction > > that > > > > above > > > > >100k the Wintel boxes start to break a sweat.
> > > > I wouldn't agree that above 100,000 DOF Wintel boxes have a problem. > > > > I've been running models with 350,000 DOF on a year old Dell PC and > > have > > > > been very happy with the run times. The main factor if you are using > > > > the PCG solver is available RAM. There is certainly a point where the > > > > Intel 32 bit architecture reaches a limit true but providing you have > > > > enough RAM and disk the point must be nearer to 1,000,000 DOF. > > Remember > > > > that PC memory, disk and maintenance are MUCH cheaper than for the > > > > equivalent workstation items, so thinking in terms of a computer with > > > > 1Gb of RAM and 40Gb of disk is a perfectly feasible and economically > > > > viable solution. Also a PC on your desk has the big advantage that > > you > > > > have 100% utilisation and control of it. Shared multi processor > > compute > > > > servers do have some advantages but somehow in the real world the > > other > > > > guy always seems to be able to argue that his job is more urgent and > > > > gets placed into a higher priority queue.