Re: [X10-users] Cannot get the GPU examples working on GeForce 320M

This issue should now be fixed in trunk. On Sun, Oct 21, 2012 at 11:16 AM, Avinash Malik ama...@scss.tcd.ie wrote: Hello, I tried compiling the running X10 GPU examples provided in the x10-trunk/x10.dist/samples/CUDA directory without success. The error I get is:

Re: [X10-users] Cannot get the GPU examples working on GeForce 320M

Thanks for your reports, I can actually reproduce this, it looks like a regression in the last release. We'll try and fix it in trunk asap. On Mon, Dec 10, 2012 at 3:50 PM, Paul Osmialowski newch...@king.net.plwrote: Hello, I'm new here and I just heard about x10 language, although I'm

Re: [X10-users] Atomic blocks

Hi You are correct, in X10 those critical sections would be unnecessarily serialised. Only one lock is used per place, and each atomic section will contend on that one lock. If this causes a problem, you can use explicit locks (just like Java), or you can use or write a lock-free datastructure.

Re: [X10-users] X10 with CUDA and MPI

'. On Feb 13, 2012, at 6:23 PM, Dave Cunningham wrote: I would guess you are right, they have probably broken backwards compatability in that version. I'll need to get the latest CUDA installed and try it. In the mean time, can you paste the output of nvcc --help on your system, at this point

Re: [X10-users] X10 with CUDA and MPI

I would guess you are right, they have probably broken backwards compatability in that version. I'll need to get the latest CUDA installed and try it. In the mean time, can you paste the output of nvcc --help on your system, at this point: --gpu-architecture gpu architecture name (-arch) [...]

Re: [X10-users] CUDA:: Segmentation fault on samples

:) Cheers :) Richard Gomes http://www.jquantlib.org/index.php/User:RichardGomes twitter: frgomes JQuantLib is a library for Quantitative Finance written in Java. http://www.jquantlib.com/ twitter: jquantlib On 28/02/11 07:52, Dave Cunningham wrote: I was able to reproduce

Re: [X10-users] CUDA:: Segmentation fault on samples

I was able to reproduce this and got this trace from valgrind but I'm on vacation for a week so cannot debug further ==23823== Invalid read of size 1 ==23823==at 0x4027411: memcpy (mc_replace_strmem.c:497) ==23823==by 0x80CD8F3: x10aux::deserialization_buffer::Readunsigned

Re: [X10-users] X10 - Concurrency control

No. It is still an open question how best to implement atomic and when in X10. The spec allows weak atomicity, so many avenues are open. The current implementation is 1 lock per place. On Fri, Feb 11, 2011 at 10:54 AM, Aditya Sriram M aditya.mattapar...@iiitb.org wrote: Hi, Does X10

Re: [X10-users] Compile and run an X10 CUDA application

I don't know if -DX10RT_CUDA is sufficient as I always do -DX10RT_CUDA=true I don't know why it can't find x10aux/config.h, the nvcc options must be wrong. Can you run x10c++ with -report postcompile=5 and show the nvcc line? How come you were able to run it if it failed compile? By the way

Re: [X10-users] X10_NTHREADS slowdown with IO

You can pass structs as parameters to native functions, or even define your own struct natively. If you tell us the precise API you want, we can probably point you to some existing code that you can use as a template. If in doubt, check the c++ code emitted by x10c++ :) On Thu, Jan 20, 2011 at

Re: [X10-users] [Question] how to run C++ backend application on multiple places.

I think the problem is you are using mpirun with the sockets backend. Try this: X10_NPLACES=4 ./sw -s data/short9.txt -l data/long9.txt -p To use mpirun you have to compile X10 for MPI, the binary downloads do not support it. On Tue, Jan 18, 2011 at 7:23 AM, David P Grove gro...@us.ibm.com

Re: [X10-users] mpi slowdown

Try setting X10_NTHREADS=1 MPI implementations have been known to play games with thread affinity On Mon, Dec 20, 2010 at 3:42 PM, Benjamin W Herta bhe...@us.ibm.com wrote: It's normal for idle places to use CPU - it's constantly checking the network for incoming messages. This helps

Re: [X10-users] increasing buffer size in X10RT

I thought this was made into an environment variable at some point but can't see it in the code. You can change this and recompile x10.runtime/x10rt/standalone #define X10RT_DATABUFFERSIZE 524300 // the size, in bytes, of the shared memory segment used for communications, per place Or you can

Re: [X10-users] How to Map IP address to Place ID

This would form part of the database of useful info at each place I think. Something like a Map[String,Any] where if there was no IPAddress then it would simply return null. Other stuff that needs to go into the db includes number of cores, other places on the same host, children places, and

Re: [X10-users] atomic in X10

Might be outdated by now, but I vaguely remember that I was told in May that there is another corner case worth mentioning: In case the atomic block works on a single integer for instance, then it is compiled down to something like compare-and-swap, sidestepping the global lock, no? That

Re: [X10-users] Question on Team and Clocks

Executing this example I've got the following message X10RT: async 37 is not a CUDA kernel. If I'm not wrong, this message comes from the kernel function, once this message dissapears when I comment out the call to the kernel function. I suspect the kernel activity is getting

Re: [X10-users] atomic in X10

On Tue, Dec 7, 2010 at 9:45 AM, Claudia Fohry fo...@uni-kassel.de wrote: Hi, according to the standard (p. 163), atomic is executed as if in a single step during which all other concurrent activities in the same place are blocked. This is just a description of its behaviour. There are

Re: [X10-users] Access X10 array in native block

Try Y-set(get_val(), 1) On Thu, Dec 2, 2010 at 1:55 PM, Kirak Hong hok...@gatech.edu wrote: Hi, * *Does anyone know how to access X10 Array in the native code block? I am trying to copy a whole matrix (array with rank 2) from C++ to X10, but I couldn't even access one element of X10 array

Re: [X10-users] What are fields ?

I believe C++ calls fields 'member variables' -- Increase Visibility of Your 3D Game App Earn a Chance To Win $500! Tap into the largest installed PC base get more eyes on your game by optimizing for Intel(R) Graphics

Re: [X10-users] Compiler internal error

If you're using the c++ backend then, depending on the error, the g++ version is sometimes useful. On Tue, Nov 23, 2010 at 10:18 AM, Christoph Pospiech christoph.pospi...@de.ibm.com wrote: Hi, my little X10 program drove X10 2.1 into a compiler internal error. Do you want me to open a JIRA

Re: [X10-users] x10c++ compiler error with CUDA: nvcc not in path

Hi The error message doesn't necessarily imply that nvcc couldn't be found, in fact the errors you got were from nvcc, and we print the same message no matter how the invocation of nvcc fails. The problem was a regression caused by a recent change in SVN, it's now fixed in r18467 thanks for

Re: [X10-users] x10c++ compiler error with CUDA: nvcc not in path

Yeah it used to live in the directory below, you could also copy up the points.dat from there. -- Increase Visibility of Your 3D Game App Earn a Chance To Win $500! Tap into the largest installed PC base get more eyes on

Re: [X10-users] x10rt_team

A team is used to identify the participants of a collective operation. See the documentation on collective operations here: http://dist.codehaus.org/x10/x10rt/x10rt__front_8h.html On Tue, Nov 23, 2010 at 5:08 PM, Jeeva Paudel je...@ualberta.ca wrote: Hi, In the X10RT API, there is a

Re: [X10-users] Failed to compile call to autoBlocks on a CUDA place

finish async at (c) @CUDA @CUDADirectParams { gmemory(0) = CUDAUtilities.autoBlocks();// line 57 gmemory(1) = CUDAUtilities.autoThreads(); } You need the rest of the kernel too. There are no blocks / threads loops, no shared memory definitions, and no

Re: [X10-users] Confused with CUDATopology

, Could you please send the patch again? Thanks Richard Gomes M: +44(77)9955-6813 http://tinyurl.com/frgomes twitter: frgomes JQuantLib is a library for Quantitative Finance written in Java. http://www.jquantlib.org/ twitter: jquantlib On 09/11/10 03:45, Dave Cunningham

Re: [X10-users] Confused with CUDATopology

Forgot to mention, you can work around the segfault by commenting out any calls to CUDAUtilities.deleteRemoteArray -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1,

Re: [X10-users] Confused with CUDATopology

Thanks for trying out X10/CUDA Your initial problem with CUDATopology is due to the fact that X10RT_ACCELS is ineffective if X10 was built without -DX10RT_CUDA=true, this means the X10 application was unable to 'see' the accelerators. You correctly surmised that building X10 from the source