http://marss86.org/~marss86/index.php/QEMU_Tips
On Sun, Aug 16, 2015 at 10:13 AM, Wen Zong <[email protected]> wrote: > Hi > > My desktop connects the network through a proxy which makes the network > setup tricky for me, so I gave up this morning. > > I'm now trying another approach by creating a image of ubuntu 12.04 > (precise) and then copy the parsec files and ./create_checkpoint etc. into > my new image. > I first copy the content from parsecROI.img to my host with the help > kpartx command. > > Now the problem is that when I copy the parsec folder from my host to the > new image, it doesn't have enough space. > I've tried to increase the rootsize option when invoking ubuntu-vm-builder > but the image size is the same as when it is set to 5120. > And after mounting, the image is a 4.1GB volume. > Here's my configuration: > > [DEFAULT] > arch = amd64 > suite = precise > rootsize = *10120 # I increased this but the raw image size doesn't > change compared with 5120* > addpkg = openssh-server, openssh-client, vim > > > Do you know how to increase the size of the image? > > Many thanks > Wen > > > On Sun, Aug 16, 2015 at 9:43 PM, Brendan Fitzgerald < > [email protected]> wrote: > >> You need to first convert the image to qcow2, since the parsecROI.img is >> read-only. >> >> You'll also need to enable networking, there are a bunch of sites that >> say how to do this. >> >> On Sun, Aug 16, 2015 at 5:13 AM, Wen Zong <[email protected]> >> wrote: >> >>> Hi Brendan >>> >>> Thank you for the suggestion. >>> >>> Do you mean I do the upgrade in the guest OS? >>> I tried this in the provided parsecROI.img and cannot upgrade anything. >>> The IP address in parsecROI.img is 127.0.0.1 which is different from the >>> default qemu network setting. >>> I'm not sure if this is this the problem of the network configuration. >>> >>> Best >>> Wen >>> >>> >>> >>> On Sat, Aug 15, 2015 at 11:10 PM, Brendan Fitzgerald < >>> [email protected]> wrote: >>> >>>> You can update the image using apt-get dist-upgrade. >>>> >>>> I know kernel version 3.0 works fine with Marss, I can't remember off >>>> the top of my head if 3.2 works, but I know 3.16 doesn't, so just be aware >>>> of how recent of an Ubuntu release you go to. >>>> >>>> On Sat, Aug 15, 2015 at 4:35 AM, Wen Zong <[email protected]> >>>> wrote: >>>> >>>>> Hi all >>>>> >>>>> I'm try to simulate a 64-core system and run Parsec benchmark to test >>>>> its performance. >>>>> However the provided parsec image is using ubuntu 9.04, which supports >>>>> at most 16 cores. >>>>> Could someone give some suggestion to increase the maximal number of >>>>> supported cores to 64? >>>>> >>>>> One possible solution is that, I can create the disk image using >>>>> higher version of ubuntu which is supposed to support more 64 cores. But I >>>>> don't have the modified Parsec benchmark in which the PTLcalls are >>>>> inserted to mark the Region of Interest. >>>>> >>>>> Very appreciated if you can give some advices. >>>>> >>>>> Best regards >>>>> Wen >>>>> >>>>> _______________________________________________ >>>>> http://www.marss86.org >>>>> Marss86-Devel mailing list >>>>> [email protected] >>>>> https://www.cs.binghamton.edu/mailman/listinfo/marss86-devel >>>>> >>>>> >>>> >>> >> >
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