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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