similar to: Porting Xen migration functionality over MPI

Hello folks, I am running Xen 2.6 under Centos 5.2 installation, and am trying to port Xen migration abilities to Infiniband. But, the InfiniBand drivers do not work under Xen kernel, only under non-Xen kernels. It looks like I need to install some patches to rectify the situation. Has anyone ever worked with Infiniband and Xen and would be able to give me inputs about the same? I would really

I made the necessary changes in xend-config.sxp, network-route and guest config files to switch over to routing mode (as suggested in "Running Xen" book). I created guest VMs and I restarted xend. But when I checked ifconfig, but it still shows me the bridge configuration. Can anyone tell me what I am missing here?? Thanks & Regards, Siddharth Wagh MS, Electrical & Computer

how do i know what the root partition is? i gave the option: root="/dev/hda" in the config file. Thanks & Regards, Siddharth Wagh ----------------------------------------------------------------------------------------- To ensure perfect aim, shoot first and call whatever you hit the target... -----------------------------------------------------------------------------------------

Hi, I am a rookie to xen. So far i have managed to install Cent OS -5.1 Xen images over two different nodes of my cluster. The cluster uses infiniband(IB) interconnect. Now ive already tested the bandwidth and latency of IB over those two nodes. But my aim now is to see the overhead that xen adds to the bandwidth and latency values. So, i am actually not sure how i can install mpi over the

Dear mac folks, I have started porting a large legacy toolset maintained in windows and heavily mpi laden so it can be used across platforms in R... so I am building a package out of it. On this note, I am noticing that almost all of the mpi dependent packages do not compile on the CRAN repositories.... with the basic issue that it appears it can not find mpi installed: configure: error:

Hi I am trying to utilize my dual core processor (and later a High-performance clusters (HPC) ) by using the Rmpi, snow, snowfall, ... packages, but I am struggling at the beginning, i.e. to initialise the "cluster" on my dual core computer. Whenever I try to initialize it (via sfInit(parallel=TRUE, cpus=2) or mpi.spawn.Rslaves(nslaves=2) ), I get an error message: >

Hi everybody! I have the next code which makes a reduction of the *a *variable in two slaves, using the Rmpi package. library(Rmpi) mpi.spawn.Rslaves(nslaves=2) reduc<-function(){ a<-mpi.comm.rank()+2 mpi.reduce(a,type=2, op="prod") return(paste("a=",a)) } mpi.bcast.Robj2slave(reduc) mpi.remote.exec(reduc()) cat("Product: ")

Hi everybody! I have the next code which makes a reduction of the *a *variable in two slaves, using the Rmpi package. library(Rmpi) mpi.spawn.Rslaves(nslaves=2) reduc<-function(){ a<-mpi.comm.rank()+2 mpi.reduce(a,type=2, op="prod") return(paste("a=",a)) } mpi.bcast.Robj2slave(reduc) mpi.remote.exec(reduc()) cat("Product: ")

??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

I am running R 2.7.0 on a Suse 9.1 linux cluster with a job scheduler dispatching jobs and openmpi-1.0.1. I have tried running one of the examples at http://ace.acadiau.ca/math/ACMMaC/Rmpi/examples.html in Rmpi and they seem to be working, except mpi.close.Rslaves() hangs. The slaves are closed, but the master doesn't finish its script. Below is the example script and the call to R. The job is

Hi Ola, There was some code done by IBM a few years ago in conjunction with a University that worked and showed the benefits but AFAIK it was never integrated into Xen. The research paper is around on the web. A few of us requested RDMA migration support for version 4.0 and it is at the top of the request list, I suspect it is probably a case of enough people asking and Citrix approving.

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

Hello, I'm using R on a 10 blade dual quad core Rocks Cluster, and trying to use Rpmi and snow. I basically wondered if at the moment I ought to install Rmpi against another form of mpi (not openmpi) and wondered whether anyone could pass on any experience. I'm mainly worried about (a) the R server taking up 100% cpu time (I think this is a known issue with Rmpi and openmpi) and (b)

Hello, I plan to use R with my cluster with OpenMPI. I need the packaged 'snow' and 'Rmpi' for that, however, I get an error while downloading and installing them: When I do a: install.packages("Rmpi", dependencies=T) I get this error: checking for mpi.h... no Try to find libmpi.so or libmpich.a checking for main in -lmpi... no libmpi not found.

R developers: I have some parallel C code, written with the MPI library, that I would like to call from R, but I get the error message below. cocite.mat.true.parallel.so compiles without complaint and I have MPI in my path, but R isn't recognizing one of the MPI symbols. I have a feeling that this is going to be tricky, but I need to get this to work. Helpful suggestions? I'd be

Hello, I want to know does LLVM has support for MPI Programming Model? Can we do LLVM optimizations in MPI Programs? Regards -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20161017/dd645f09/attachment.html>

Hi all: Can dtrace trouble-shoot the MPI porgrams (HPC programs)? Does there exist an extension on dtrace to debug MPI program? If exist, then where can I find the how-to documentations? Thanks in advance? Regards TJ -------------- next part -------------- An HTML attachment was scrubbed... URL:

On FC10 with openmpi and mpich2 installed, the command "R CMD INSTALL Rmpi_0.5-7.tar.gz --configure-args=--with-mpi=/usr/lib64/openmpi" (or /usr/lib64/mpich2) fails with the error ''cannot find mpi.h". Doing a (s)locate indicates no header file labeled as such. Would appreciate any trailheads. TIA, V. -- Vince Fulco, CFA, CAIA 612.424.5477 (universal) vfulco1 at

I've done a little digging, but I haven't been able to find an MPI or snow (or any other distributed processing) implementation of fanny (from cluster) or cmeans. Is anyone aware of some implementations or addons which I've missed? [I know of doi://10.1007/978-3-540-71351-7; but that's not for R] Don Armstrong [Currently not subscribed; M-F-T: set accordingly.] -- Certainly

Dear R users, did anybody hack MPI bindings for R? (hoping somebody did that for me before :) Otherwise I might do that soonish. Anybody out there who has some special wishes for that? If yes, please email me directly.. as I'll spend a few days thinking about how to do that best and then do it. (Note: I'm not producing a parallel, thread-safe version of R) Armin