Dear All,
I was wondering if I can run several freesurfers in my virtualbox simultaneously by setting up several virtual machines...my computer has 16G RAM and it's Windows 7 64-bit. Would working multiple freesurfers at the same time slow down the calculations? Moreover, I was wondering if my computer could afford these loads...
Thanks Catherine
Hi Catherine
it depends on how many processors you have. If you have multiple CPUs you should be fine, although you'll need at least 2G/process if not 3.
cheers Bruce
On Thu, 21 Apr 2011, Rongxiang Tang wrote:
Dear All,
I was wondering if I can run several freesurfers in my virtualbox simultaneously by setting up several virtual machines...my computer has 16G RAM and it's Windows 7 64-bit. Would working multiple freesurfers at the same time slow down the calculations? Moreover, I was wondering if my computer could afford these loads...
Thanks Catherine
Thank you guys for all the great information! Now I only have a few questions.... I realized that my computer has 4 cores... So based on your suggestions, if I assign 3 cores for my Freesurfer virtual machine, should I change the # of processors to 3 in my freesurfer virtual machine's "Setting "?
p, li { white-space: pre-wrap; }
p, li { white-space: pre-wrap; }
Base Memory:
6028 MB
Processors:
3
Boot Order:
Floppy, CD/DVD-ROM, Hard Disk
Acceleration:
VT-x/AMD-V, Nested PagingIs this correct? Also, if I want to run multiple freesurfer recon-all in one virtual machine, should I just open several terminals, and enter in separate commands? If I understand correctly...
Thanks Again! Catherine
--- On Thu, 4/21/11, Bruce Fischl fischl@nmr.mgh.harvard.edu wrote:
From: Bruce Fischl fischl@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] Could I run several freesurfers at the same time? To: "Rongxiang Tang" rongxiangtang@yahoo.com Cc: freesurfer@nmr.mgh.harvard.edu Date: Thursday, April 21, 2011, 4:52 PM
Hi Catherine
it depends on how many processors you have. If you have multiple CPUs you should be fine, although you'll need at least 2G/process if not 3.
cheers Bruce
On Thu, 21 Apr 2011, Rongxiang Tang wrote:
Dear All,
I was wondering if I can run several freesurfers in my virtualbox simultaneously by setting up several virtual machines...my computer has 16G RAM and it's Windows 7 64-bit. Would working multiple freesurfers at the same time slow down the calculations? Moreover, I was wondering if my computer could afford these loads...
Thanks Catherine
The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
For the first part, yes it's good. Give it 3 cores and at least 6GB of memory (~6144MB, but 6028 will be fine), but you can also give it 9GB as others suggested, as you have plenty and won't miss it. :)
For the second part, also yes. Open 3 terminal windows, and use separate commands in each.
Now 3 recon processes will finish in about the same time like did only one before.
Bye
Gergo
2011/4/22 Rongxiang Tang rongxiangtang@yahoo.com
Thank you guys for all the great information! Now I only have a few questions.... I realized that my computer has 4 cores... So based on your suggestions, if I assign 3 cores for my Freesurfer virtual machine, should I change the # of processors to 3 in my freesurfer virtual machine's "Setting "?
Base Memory:
6028 MB
Processors:
3
Boot Order:
Floppy, CD/DVD-ROM, Hard Disk
Acceleration:
VT-x/AMD-V, Nested Paging Is this correct? Also, if I want to run multiple freesurfer recon-all in one virtual machine, should I just open several terminals, and enter in separate commands? If I understand correctly...
Thanks Again! Catherine
--- On *Thu, 4/21/11, Bruce Fischl fischl@nmr.mgh.harvard.edu* wrote:
From: Bruce Fischl fischl@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] Could I run several freesurfers at the same time? To: "Rongxiang Tang" rongxiangtang@yahoo.com Cc: freesurfer@nmr.mgh.harvard.edu Date: Thursday, April 21, 2011, 4:52 PM
Hi Catherine
it depends on how many processors you have. If you have multiple CPUs you should be fine, although you'll need at least 2G/process if not 3.
cheers Bruce
On Thu, 21 Apr 2011, Rongxiang Tang wrote:
Dear All,
I was wondering if I can run several freesurfers in my virtualbox
simultaneously by setting up several virtual machines...my computer has 16G RAM and it's Windows 7 64-bit.
Would working multiple freesurfers at the same time slow down the
calculations?
Moreover, I was wondering if my computer could afford these loads...
Thanks Catherine
The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
On Thu, 2011-04-21 at 09:48 -0700, Rongxiang Tang wrote:
I was wondering if I can run several freesurfers in my virtualbox simultaneously by setting up several virtual machines...my computer has 16G RAM and it's Windows 7 64-bit. Would working multiple freesurfers at the same time slow down the calculations? Moreover, I was wondering if my computer could afford these loads...
I can't speak for the virtualisation side, but it's certainly possible (even advisable) to run more than one copy of Freesurfer on a machine. I ran an experiment, running a recon-all instance on each of my box's four cores, and they were all complete in about 110% of the time of a single run - a big win.
Now with virtualisation, you'd also be running extra copies of the guest OS. Can you set up a single VM with multiple cores instead? If you have a quad core machine, give the VM three cores, and run three Freesurfer jobs on it. Trying it is the only way to be sure.
Richard
You can set up multicore in VirtualBox or VMWare
In my experience ( without the gcut) 1GB is enough
-- iOS 4.3
Em 21/04/2011, às 13:53, "Richard G. Edgar" rge21@nmr.mgh.harvard.edu escreveu:
On Thu, 2011-04-21 at 09:48 -0700, Rongxiang Tang wrote:
I was wondering if I can run several freesurfers in my virtualbox simultaneously by setting up several virtual machines...my computer has 16G RAM and it's Windows 7 64-bit. Would working multiple freesurfers at the same time slow down the calculations? Moreover, I was wondering if my computer could afford these loads...
I can't speak for the virtualisation side, but it's certainly possible (even advisable) to run more than one copy of Freesurfer on a machine. I ran an experiment, running a recon-all instance on each of my box's four cores, and they were all complete in about 110% of the time of a single run - a big win.
Now with virtualisation, you'd also be running extra copies of the guest OS. Can you set up a single VM with multiple cores instead? If you have a quad core machine, give the VM three cores, and run three Freesurfer jobs on it. Trying it is the only way to be sure.
Richard
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
the figure below show memory consumption for 3 running process (the OS uses 400MB)
2011/4/21 Pedro Paulo de Magalhães Oliveira Junior ppj@netfilter.com.br:
You can set up multicore in VirtualBox or VMWare
In my experience ( without the gcut) 1GB is enough
-- iOS 4.3
Em 21/04/2011, às 13:53, "Richard G. Edgar" rge21@nmr.mgh.harvard.edu escreveu:
On Thu, 2011-04-21 at 09:48 -0700, Rongxiang Tang wrote:
I was wondering if I can run several freesurfers in my virtualbox simultaneously by setting up several virtual machines...my computer has 16G RAM and it's Windows 7 64-bit. Would working multiple freesurfers at the same time slow down the calculations? Moreover, I was wondering if my computer could afford these loads...
I can't speak for the virtualisation side, but it's certainly possible (even advisable) to run more than one copy of Freesurfer on a machine. I ran an experiment, running a recon-all instance on each of my box's four cores, and they were all complete in about 110% of the time of a single run - a big win.
Now with virtualisation, you'd also be running extra copies of the guest OS. Can you set up a single VM with multiple cores instead? If you have a quad core machine, give the VM three cores, and run three Freesurfer jobs on it. Trying it is the only way to be sure.
Richard
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
freesurfer@nmr.mgh.harvard.edu
-
Bruce Fischl -
Gergely Orsi -
Pedro Paulo de Magalhães Oliveira Junior -
Richard G. Edgar -
Rongxiang Tang