http://marss86.org/~marss86/index.php/QEMU_Tips
On Mon, Aug 17, 2015 at 1:17 PM, Wen Zong <[email protected]> wrote: > Hi > > Finally I was able to increase the size of the image and copied all parsec > files to the image and now try to boot the 64-core system. > > But the guest Ubuntu 12.04 (precise) cannot boot with 64-core setup. > And the output is like this > [image: Inline image 1] > This seems to be the problem of the guest kernel itself. > > > The ubuntu-natty.qcow2 also doesn't work with 64-core whose output is > like this > [image: Inline image 2] > > I guess the guest kernel needs to be modified to make it work on 64-core > processor. > > Best > Wen > > > > > > On Sun, Aug 16, 2015 at 10:29 PM, Brendan Fitzgerald < > [email protected]> wrote: > >> 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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