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Running Multiple LTspice simulations

Started by Unknown August 7, 2013
Is it possible to run multiple LTspice simulations simultaneously? These co=
mputers have multiple processors and I don't know how optimized for paralle=
l processing LTspice is. I wonder if there would be much of a penalty for r=
unning two simulations at the same time.

Thanks
On 8/7/2013 10:04 AM, wanderer@dialup4less.com wrote:
> Is it possible to run multiple LTspice simulations simultaneously? > These computers have multiple processors and I don't know how > optimized for parallel processing LTspice is. I wonder if there would > be much of a penalty for running two simulations at the same time. > > Thanks >
Sure, works fine. The control panel lets you set the maximum number of threads that the engine will use. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 USA +1 845 480 2058 hobbs at electrooptical dot net http://electrooptical.net
On Wednesday, August 7, 2013 10:27:26 AM UTC-4, Phil Hobbs wrote:
> On 8/7/2013 10:04 AM, wanderer wrote: > > > Is it possible to run multiple LTspice simulations simultaneously? > > > These computers have multiple processors and I don't know how > > > optimized for parallel processing LTspice is. I wonder if there would > > > be much of a penalty for running two simulations at the same time. > > > > > > Thanks > > > > > > > Sure, works fine. The control panel lets you set the maximum number of > > threads that the engine will use. > > > > Cheers > > > > Phil Hobbs > > > > -- > > Dr Philip C D Hobbs > > Principal Consultant > > ElectroOptical Innovations LLC > > Optics, Electro-optics, Photonics, Analog Electronics > > > > 160 North State Road #203 > > Briarcliff Manor NY 10510 USA > > +1 845 480 2058 > > > > hobbs at electrooptical dot net > > http://electrooptical.net
The Engine Max threads and the Run and Stop simulation commands are greyed out for me in the second schematic. I guess I need to set this up before I start the simulation. I'll try it once my first simulation stops. Thanks
On Wednesday, August 7, 2013 10:39:57 AM UTC-4, wand...@dialup4less.com wrote:
> On Wednesday, August 7, 2013 10:27:26 AM UTC-4, Phil Hobbs wrote: > > > On 8/7/2013 10:04 AM, wanderer wrote: > > > > > > > Is it possible to run multiple LTspice simulations simultaneously? > > > > > > > These computers have multiple processors and I don't know how > > > > > > > optimized for parallel processing LTspice is. I wonder if there would > > > > > > > be much of a penalty for running two simulations at the same time. > > > > > > > > > > > > > > Thanks > > > > > > > > > > > > > > > > > > > Sure, works fine. The control panel lets you set the maximum number of > > > > > > threads that the engine will use. > > > > > > > > > > > > Cheers > > > > > > > > > > > > Phil Hobbs > > > > > > > > > > > > -- > > > > > > Dr Philip C D Hobbs > > > > > > Principal Consultant > > > > > > ElectroOptical Innovations LLC > > > > > > Optics, Electro-optics, Photonics, Analog Electronics > > > > > > > > > > > > 160 North State Road #203 > > > > > > Briarcliff Manor NY 10510 USA > > > > > > +1 845 480 2058 > > > > > > > > > > > > hobbs at electrooptical dot net > > > > > > http://electrooptical.net > > > > The Engine Max threads and the Run and Stop simulation commands are greyed out for me in the second schematic. I guess I need to set this up before I start the simulation. I'll try it once my first simulation stops. > > > > Thanks
I can't get two simulations to run. Max Threads is set to 2. Is there some trick? Thanks
On 08/07/2013 01:36 PM, wanderer@dialup4less.com wrote:
> On Wednesday, August 7, 2013 10:39:57 AM UTC-4, wand...@dialup4less.com wrote: >> On Wednesday, August 7, 2013 10:27:26 AM UTC-4, Phil Hobbs wrote: >> >>> On 8/7/2013 10:04 AM, wanderer wrote: >> >>> >> >>>> Is it possible to run multiple LTspice simulations simultaneously? >> >>> >> >>>> These computers have multiple processors and I don't know how >> >>> >> >>>> optimized for parallel processing LTspice is. I wonder if there would >> >>> >> >>>> be much of a penalty for running two simulations at the same time. >> >>> >> >>>> >> >>> >> >>>> Thanks >> >>> >> >>>> >> >>> >> >>> >> >>> >> >>> Sure, works fine. The control panel lets you set the maximum number of >> >>> >> >>> threads that the engine will use. >> >>> >> >>> >> >>> >> >>> Cheers >> >>> >> >>> >> >>> >> >>> Phil Hobbs >> >>> >> >>> >> >>> >> >>> -- >> >>> >> >>> Dr Philip C D Hobbs >> >>> >> >>> Principal Consultant >> >>> >> >>> ElectroOptical Innovations LLC >> >>> >> >>> Optics, Electro-optics, Photonics, Analog Electronics >> >>> >> >>> >> >>> >> >>> 160 North State Road #203 >> >>> >> >>> Briarcliff Manor NY 10510 USA >> >>> >> >>> +1 845 480 2058 >> >>> >> >>> >> >>> >> >>> hobbs at electrooptical dot net >> >>> >> >>> http://electrooptical.net >> >> >> >> The Engine Max threads and the Run and Stop simulation commands are greyed out for me in the second schematic. I guess I need to set this up before I start the simulation. I'll try it once my first simulation stops. >> >> >> >> Thanks > > I can't get two simulations to run. Max Threads is set to 2. Is there some trick? > > Thanks >
Dunno. I'm on a Linux box at the moment. I did try running two copies of LTspice on Win 7 32-bit, but didn't get as far as running two simulations at once, since my Linux box is so much faster. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 hobbs at electrooptical dot net http://electrooptical.net
On 8/7/2013 12:38 PM, Phil Hobbs wrote:
> On 08/07/2013 01:36 PM, wanderer@dialup4less.com wrote: >> On Wednesday, August 7, 2013 10:39:57 AM UTC-4, >> wand...@dialup4less.com wrote: >>> On Wednesday, August 7, 2013 10:27:26 AM UTC-4, Phil Hobbs wrote: >>> >>>> On 8/7/2013 10:04 AM, wanderer wrote: >>> >>>> >>> >>>>> Is it possible to run multiple LTspice simulations simultaneously? >>> >>>> >>> >>>>> These computers have multiple processors and I don't know how >>> >>>> >>> >>>>> optimized for parallel processing LTspice is. I wonder if there would >>> >>>> >>> >>>>> be much of a penalty for running two simulations at the same time. >>> >>>> >>> >>>>> >>> >>>> >>> >>>>> Thanks >>> >>>> >>> >>>>> >>> >>>> >>> >>>> >>> >>>> >>> >>>> Sure, works fine. The control panel lets you set the maximum number of >>> >>>> >>> >>>> threads that the engine will use. >>> >>>> >>> >>>> >>> >>>> >>> >>>> Cheers >>> >>>> >>> >>>> >>> >>>> >>> >>>> Phil Hobbs >>> >>>> >>> >>>> >>> >>>> >>> >>>> -- >>> >>>> >>> >>>> Dr Philip C D Hobbs >>> >>>> >>> >>>> Principal Consultant >>> >>>> >>> >>>> ElectroOptical Innovations LLC >>> >>>> >>> >>>> Optics, Electro-optics, Photonics, Analog Electronics >>> >>>> >>> >>>> >>> >>>> >>> >>>> 160 North State Road #203 >>> >>>> >>> >>>> Briarcliff Manor NY 10510 USA >>> >>>> >>> >>>> +1 845 480 2058 >>> >>>> >>> >>>> >>> >>>> >>> >>>> hobbs at electrooptical dot net >>> >>>> >>> >>>> http://electrooptical.net >>> >>> >>> >>> The Engine Max threads and the Run and Stop simulation commands are >>> greyed out for me in the second schematic. I guess I need to set this >>> up before I start the simulation. I'll try it once my first >>> simulation stops. >>> >>> >>> >>> Thanks >> >> I can't get two simulations to run. Max Threads is set to 2. Is there >> some trick? >> >> Thanks >> > > Dunno. I'm on a Linux box at the moment. I did try running two copies > of LTspice on Win 7 32-bit, but didn't get as far as running two > simulations at once, since my Linux box is so much faster. > > Cheers > > Phil Hobbs
Faster than what, Phil? I'm very curious and maybe seeking a blazing desktop. Many thanks, John S
On Wednesday, August 7, 2013 1:38:46 PM UTC-4, Phil Hobbs wrote:
> On 08/07/2013 01:36 PM, wanderer wrote: > > > On Wednesday, August 7, 2013 10:39:57 AM UTC-4, wanderer wrote: > > >> On Wednesday, August 7, 2013 10:27:26 AM UTC-4, Phil Hobbs wrote: > > >> > > >>> On 8/7/2013 10:04 AM, wanderer wrote: > > >> > > >>> > > >> > > >>>> Is it possible to run multiple LTspice simulations simultaneously? > > >> > > >>> > > >> > > >>>> These computers have multiple processors and I don't know how > > >> > > >>> > > >> > > >>>> optimized for parallel processing LTspice is. I wonder if there would > > >> > > >>> > > >> > > >>>> be much of a penalty for running two simulations at the same time. > > >> > > >>> > > >> > > >>>> > > >> > > >>> > > >> > > >>>> Thanks > > >> > > >>> > > >> > > >>>> > > >> > > >>> > > >> > > >>> > > >> > > >>> > > >> > > >>> Sure, works fine. The control panel lets you set the maximum number of > > >> > > >>> > > >> > > >>> threads that the engine will use. > > >> > > >>> > > >> > > >>> > > >> > > >>> > > >> > > >>> Cheers > > >> > > >>> > > >> > > >>> > > >> > > >>> > > >> > > >>> Phil Hobbs > > >> > > >>> > > >> > > >>> > > >> > > >>> > > >> > > >>> -- > > >> > > >>> > > >> > > >>> Dr Philip C D Hobbs > > >> > > >>> > > >> > > >>> Principal Consultant > > >> > > >>> > > >> > > >>> ElectroOptical Innovations LLC > > >> > > >>> > > >> > > >>> Optics, Electro-optics, Photonics, Analog Electronics > > >> > > >>> > > >> > > >>> > > >> > > >>> > > >> > > >>> 160 North State Road #203 > > >> > > >>> > > >> > > >>> Briarcliff Manor NY 10510 USA > > >> > > >>> > > >> > > >>> +1 845 480 2058 > > >> > > >>> > > >> > > >>> > > >> > > >>> > > >> > > >>> hobbs at electrooptical dot net > > >> > > >>> > > >> > > >>> http://electrooptical.net > > >> > > >> > > >> > > >> The Engine Max threads and the Run and Stop simulation commands are greyed out for me in the second schematic. I guess I need to set this up before I start the simulation. I'll try it once my first simulation stops. > > >> > > >> > > >> > > >> Thanks > > > > > > I can't get two simulations to run. Max Threads is set to 2. Is there some trick? > > > > > > Thanks > > > > > > > Dunno. I'm on a Linux box at the moment. I did try running two copies > > of LTspice on Win 7 32-bit, but didn't get as far as running two > > simulations at once, since my Linux box is so much faster. > > > > Cheers > > > > Phil Hobbs > > > > > > > > -- > > Dr Philip C D Hobbs > > Principal Consultant > > ElectroOptical Innovations LLC > > Optics, Electro-optics, Photonics, Analog Electronics > > > > 160 North State Road #203 > > Briarcliff Manor NY 10510 > > > > hobbs at electrooptical dot net > > http://electrooptical.net
I figured it out. I need to open two instances of LTspice. not try to run two simulations in one in instance. Thanks
On 08/07/2013 01:44 PM, John S wrote:
> On 8/7/2013 12:38 PM, Phil Hobbs wrote: >> On 08/07/2013 01:36 PM, wanderer@dialup4less.com wrote: >>> On Wednesday, August 7, 2013 10:39:57 AM UTC-4, >>> wand...@dialup4less.com wrote: >>>> On Wednesday, August 7, 2013 10:27:26 AM UTC-4, Phil Hobbs wrote: >>>> >>>>> On 8/7/2013 10:04 AM, wanderer wrote: >>>> >>>>> >>>> >>>>>> Is it possible to run multiple LTspice simulations simultaneously? >>>> >>>>> >>>> >>>>>> These computers have multiple processors and I don't know how >>>> >>>>> >>>> >>>>>> optimized for parallel processing LTspice is. I wonder if there would >>>> >>>>> >>>> >>>>>> be much of a penalty for running two simulations at the same time. >>>> >>>>> >>>> >>>>>> >>>> >>>>> >>>> >>>>>> Thanks >>>> >>>>> >>>> >>>>>> >>>> >>>>> >>>> >>>>> >>>> >>>>> >>>> >>>>> Sure, works fine. The control panel lets you set the maximum >>>>> number of >>>> >>>>> >>>> >>>>> threads that the engine will use. >>>> >>>>> >>>> >>>>> >>>> >>>>> >>>> >>>>> Cheers >>>> >>>>> >>>> >>>>> >>>> >>>>> >>>> >>>>> Phil Hobbs >>>> >>>>> >>>> >>>>> >>>> >>>>> >>>> >>>>> -- >>>> >>>>> >>>> >>>>> Dr Philip C D Hobbs >>>> >>>>> >>>> >>>>> Principal Consultant >>>> >>>>> >>>> >>>>> ElectroOptical Innovations LLC >>>> >>>>> >>>> >>>>> Optics, Electro-optics, Photonics, Analog Electronics >>>> >>>>> >>>> >>>>> >>>> >>>>> >>>> >>>>> 160 North State Road #203 >>>> >>>>> >>>> >>>>> Briarcliff Manor NY 10510 USA >>>> >>>>> >>>> >>>>> +1 845 480 2058 >>>> >>>>> >>>> >>>>> >>>> >>>>> >>>> >>>>> hobbs at electrooptical dot net >>>> >>>>> >>>> >>>>> http://electrooptical.net >>>> >>>> >>>> >>>> The Engine Max threads and the Run and Stop simulation commands are >>>> greyed out for me in the second schematic. I guess I need to set this >>>> up before I start the simulation. I'll try it once my first >>>> simulation stops. >>>> >>>> >>>> >>>> Thanks >>> >>> I can't get two simulations to run. Max Threads is set to 2. Is there >>> some trick? >>> >>> Thanks >>> >> >> Dunno. I'm on a Linux box at the moment. I did try running two copies >> of LTspice on Win 7 32-bit, but didn't get as far as running two >> simulations at once, since my Linux box is so much faster. >> >> Cheers >> >> Phil Hobbs > > Faster than what, Phil? I'm very curious and maybe seeking a blazing > desktop. > > Many thanks, > John S >
It's a Supermicro 16-core Opteron Magny Cours box with 4TB of hardware RAID-5 and 32 gig of memory. I bought it a couple of years ago to do simulations on, and it flies. The exact model number is on my equipment page, http://electrooptical.net/www/EOILab/LabEquipment.html . I paid $3.8k-ish for it, iirc. I had it built by a reseller called Alvio, who are a pretty good bunch. Call Alexander and tell him I said "Hi". Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 hobbs at electrooptical dot net http://electrooptical.net
On 8/7/2013 1:02 PM, Phil Hobbs wrote:

>>> >>> Dunno. I'm on a Linux box at the moment. I did try running two copies >>> of LTspice on Win 7 32-bit, but didn't get as far as running two >>> simulations at once, since my Linux box is so much faster. >>> >>> Cheers >>> >>> Phil Hobbs >> >> Faster than what, Phil? I'm very curious and maybe seeking a blazing >> desktop. >> >> Many thanks, >> John S >> > > It's a Supermicro 16-core Opteron Magny Cours box with 4TB of hardware > RAID-5 and 32 gig of memory. I bought it a couple of years ago to do > simulations on, and it flies. The exact model number is on my equipment > page, http://electrooptical.net/www/EOILab/LabEquipment.html . > > I paid $3.8k-ish for it, iirc. I had it built by a reseller called > Alvio, who are a pretty good bunch. Call Alexander and tell him I said > "Hi". > > Cheers > > Phil Hobbs
Thanks for the info. I'll look them up and call. I hope Win7 will not mess up the plans. Cheers, John S