Displaying 20 results from an estimated 100 matches similar to: "Libvirt mpiexec networking issue"
2013 Apr 17
1
question about process power which has MCSx
hi,all
a qemu-kvm process and its disk(image file) have the same MCS(s0:c111,c555). it express this process have access to this image.
i do not know the power to access its image file is the max or min?
if any other power this process(domain) has?how much?
i want to know the exact power a qemu-kvm process has besides access its image file ,other kinds of files,dirs etc.
my test case:
2009 Jun 01
2
GUK (enhanced MiniOS) released
I am pleased to announce the release of GUK (Project Guest VM
Microkernel), which is an enhanced version of Mini-OS that underpins the
Guest VM virtual machine. Guest VM is an implementation of the Java
platform, written almost completely in Java, running directly on Xen.
Although GUK was developed specifically for Guest VM, it can be used
stand-alone in a similar way to Mini-OS.
The main
2009 Jun 01
2
GUK (enhanced MiniOS) released
I am pleased to announce the release of GUK (Project Guest VM
Microkernel), which is an enhanced version of Mini-OS that underpins the
Guest VM virtual machine. Guest VM is an implementation of the Java
platform, written almost completely in Java, running directly on Xen.
Although GUK was developed specifically for Guest VM, it can be used
stand-alone in a similar way to Mini-OS.
The main
2013 Apr 23
1
how to limit each spice-client can only see its own usb device.
hi,all
i use thin client to visit guestVM(throught spice), if i attach usb device to thin client, how to assure that this usb can be only accessed by the guestVM corresponding to thin client?
thanks
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2013 Apr 24
1
how to control usb read write perm
hi,all
i have 2 questions. both is related to spice usb redirect.
1. if i can control RW perm of usb device which is producted via spice ? in order to control user's rw operation in guestVM .
2.if user have several usbs, and plug them at the same time when using spice client. if i can control which usb(s) can be accessed by user in guestVM?
thanks
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2010 Oct 18
1
how to display guestvm''s desktop in a host-window?
Dear all:
I want to display guestvm''s desktop in host-window,but I ''ve no idea.
Could you give me some samples(c or c++ code) about this.
Best wishes.
Thanks very much.
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2013 Nov 21
2
Running R embedded in an mpiexec spawned process - Fatal error: you must specify '--save', '--no-save' or '--vanilla'
I'd like someone familiar with the R options initialization to comment on a difference of behavior within/without mpiexec
I have a (.NET) application with embedded R that is proven to run in a single process:
./Sample1.exe
on a Debian Linux with R 3.0.2
Running the same code with mpiexec, it fails at the R engine initialization:
mpiexec -n 1 ./Sample1.exe
Fatal error: you must
2008 Jul 01
2
problem with mpiexec and Rmpi
Dear R People:
I'm having some trouble with mpiexec and Rmpi.
I would like to be able to pass in the number of "children" via the
mpiexec command (from the command line).
this is in SUSE10.1, with R-2.7.1
Here are my files:
cat eb.R
library(Rmpi)
mpi.remote.exec(paste("i am",mpi.comm.rank(),"of",mpi.comm.size()))
mpi.quit()
hodgesse at
2010 Aug 10
0
does libvirt support VHD disk tpye?
Sorry for my fault that I just sent this mail to xen-devel first.
Hi,everyone
I am trying to use VHD disk format on guestVM.
My environment is fedora12+ xen-4.0.1-rc6 + xen-stable/2.6.32.15+libvirt-0.8.3
I success on booting VM in VHD disk correctly using "xm create VM.cfg" and everything runs alright
Where disk = [
2019 Apr 13
1
Re: virt-v2v slow when running inside the VM
I eliminated software-bridge( using iperf3 bandwidth/latency on the host
and guest was almost the same) and
disk write(using qemu-img convert src dest file both on the host and
guestvm was comprable) being the issue.
Next I profiled both sshd and qemu-img during the conversion phase using
bpftools (profile and tcptop) and this is what i see.
Time (min)
File Size
(KB)
sshd RX
(KB)
tcptop
2019 Apr 10
2
Re: virt-v2v slow when running inside the VM
thanks Richard,
The experiment was indeed done with nested VM enabled. I am not sure about
the internals, but i thought once overlay is setup the 2 main processes are
sshd and qemu-img convert (reading data from sshd and doing the conversion)
I don't see any of the qemu process running.
Initial overlay setup was pretty quick and rest of the time was spent in
qemu-img convert operation
Suresh
2012 Apr 04
1
npRmpi trouble - mpi.comm.spawn causes segfault
Dear all,
I have a large dataset of randomly generated weighed sample for which I
wish to compute a kernel density estimate.
I have used the "np" package successfully for smaller datasets, however
for the larger ones, they take too long when
using the cross validation options for bandwidth selection ("cv.ls" or
"cv.ml"). Of course, they are much quicker with
2013 Jun 16
2
Problem in linking a library in R package
1.I have a library fpmpi . I made the shared library fpmpi.so from this
library.I am using ubuntu .
2.Now, I want to use in my R package .My R package has src folder the there
is makevars.in file
### Setup R source code and objects.
PKG_CPPFLAGS = @PKG_CPPFLAGS@
PKG_LIBS = -L/home/g/Desktop/Project -fpmpip
### For user configuration.
USER_CONF = Makeconf
### Start making here.
all:
2013 Jul 18
2
001: RELIABILITY FIX: March 15, 2013
Can someone please provide me with a little more information about
this. It could be the source of some issues I am seeing with
mpirun/mpiexec.hydra/ssh (post earlier today), and information about
what it leads to (and any signatures) would be helpful. Thanks.
--
Professor Laurence Marks
Department of Materials Science and Engineering
Northwestern University
www.numis.northwestern.edu
2015 May 25
0
foreach hangs when using doMPI on Windows with Microsoft MPI
??I installed Microsoft MPI.
Then installed the foreach and Rmpi packages.
Then built doMPI from source.
mpi.remote.exec works.
foreach hangs with the main process and all worker processes idle.
I launch my script with mpiexec:
"C:\Program Files\Microsoft MPI\Bin\mpiexec" -n 3 "C:\Program Files\R\R-3.2.0\bin\x64\Rterm.exe" --no-save -q -f "MPI Test.r"
The
2013 Jun 07
1
cannot load pbdMPI package after compilation
Hello,
I try to install pbdMPI.
Compilation successful, but load fails with segfault.
Is anyone can help me?
R version 3.0.0
pbdMPI version 0.1-6
Intel compiler version 13.1.1
OpenMPI version 1.6.4-1
CPU Intel x86_64
# R CMD INSTALL pbdMPI_0.1-6.tar.gz
..
....
checking for gcc... icc -std=gnu99
checking whether the C compiler works... yes
checking for C compiler default output file name...
2007 Dec 20
2
Multicore computation in Windows network: How to set up Rmpi
R-users,
My question is related to earlier posts about benefits of quadcore over
dualcore computers; I am trying to setup a cluster of windows xp
computers so that eventually I could make use of 10-20 cpu:s, but for
learning how to do this, I am playing around with two laptops.
I thought that the package snow would come handy in this situation, but
to use snow, I would probably need to install
2009 Oct 30
24
Using Xen Virtualization Environment for Development and Testing of Supercomputing and High Performance Computing (HPC) Cluster MPICH2 MPI-2 Applications
Dear All,
I have created a virtual high performance computing (HPC) cluster of 6
compute nodes with MPICH2 using Xen-based Fedora 11 Linux 64-bit
paravirtualized (PV) domU guests. Dom0 is Fedora 11 Linux 64-bit. My Intel
Desktop Board DQ45CB has a single onboard Gigabit LAN network adapter.
I am able to bring up the ring of mpd on the set of 6 compute nodes.
However, I am consistently
2009 Oct 30
24
Using Xen Virtualization Environment for Development and Testing of Supercomputing and High Performance Computing (HPC) Cluster MPICH2 MPI-2 Applications
Dear All,
I have created a virtual high performance computing (HPC) cluster of 6
compute nodes with MPICH2 using Xen-based Fedora 11 Linux 64-bit
paravirtualized (PV) domU guests. Dom0 is Fedora 11 Linux 64-bit. My Intel
Desktop Board DQ45CB has a single onboard Gigabit LAN network adapter.
I am able to bring up the ring of mpd on the set of 6 compute nodes.
However, I am consistently
2006 May 18
0
MPI and R CMD SHLIB
Hi,
I would like to compile a shared C++ library but using MPI. Is there
away to compile shared libraries using the functionality of mpiexec
supplied with MPICH-2.
Thanks for any help,
Jarrod