Boosting Java performance using GPGPU [pdf]

#1

Post by Phithagoras » Mon, Aug 31, 2015, 4:43 PM UTC

Boosting Java performance using GPGPU [pdf]
arxiv.org

Re: Boosting Java performance using GPGPU [pdf]

#2

Post by saganus » Mon, Aug 31, 2015, 5:34 PM UTC

This looks very interesting.

Any way we can download some code to test this out or is this still unpublished code?

Re: Boosting Java performance using GPGPU [pdf]

#3

Post by sitkack » Mon, Aug 31, 2015, 6:26 PM UTC

This is a direct comparison of their framework and https://github.com/aparapi/aparapi which you can use now.

The JDK is getting support for GPGPU via Truffle/Graal http://www.oracle.com/technetwork/java/jvmls2913wuerth-20139...

Re: Boosting Java performance using GPGPU [pdf]

#4

Post by fbristow » Mon, Aug 31, 2015, 6:51 PM UTC

Here's another project that's providing GPU access from Java code: https://github.com/pcpratts/rootbeer1

Re: Boosting Java performance using GPGPU [pdf]

#5

Post by nsxwolf » Mon, Aug 31, 2015, 7:11 PM UTC

fbristow wrote: post #4

Here's another project that's providing GPU access from Java code: https://github.com/pcpratts/rootbeer1

Too bad it's CUDA and not OpenCL. I wonder what the rationale was. Seems natural to use an open GPGPU framework for a Java application.

Re: Boosting Java performance using GPGPU [pdf]

#6

Post by RussianCow » Mon, Aug 31, 2015, 7:29 PM UTC

nsxwolf wrote: post #5

fbristow wrote: post #4

Here's another project that's providing GPU access from Java code: https://github.com/pcpratts/rootbeer1

Too bad it's CUDA and not OpenCL. I wonder what the rationale was. Seems natural to use an open GPGPU framework for a Java application.

Probably just because Nvidia cards dominate the market for most GPGPU use cases.

Re: Boosting Java performance using GPGPU [pdf]

#7

Post by fbristow » Mon, Aug 31, 2015, 7:30 PM UTC

nsxwolf wrote: post #5

fbristow wrote: post #4

Here's another project that's providing GPU access from Java code: https://github.com/pcpratts/rootbeer1

Too bad it's CUDA and not OpenCL. I wonder what the rationale was. Seems natural to use an open GPGPU framework for a Java application.

The author explains why here (3 years ago): https://github.com/pcpratts/rootbeer1/issues/2

Not sure that his explanation is accurate, though.

Re: Boosting Java performance using GPGPU [pdf]

#8

Post by sp332 » Mon, Aug 31, 2015, 7:53 PM UTC

RussianCow wrote: post #6

nsxwolf wrote: post #5

Earlier quoted context omitted.

Too bad it's CUDA and not OpenCL. I wonder what the rationale was. Seems natural to use an open GPGPU framework for a Java application.

Probably just because Nvidia cards dominate the market for most GPGPU use cases.

OpenCL is cross-platform, so it would support nvidia, ATI, Intel, CPUs, etc.

Re: Boosting Java performance using GPGPU [pdf]

#9

Post by dkersten » Mon, Aug 31, 2015, 8:49 PM UTC

sp332 wrote: post #8

RussianCow wrote: post #6

Earlier quoted context omitted.

Probably just because Nvidia cards dominate the market for most GPGPU use cases.

OpenCL is cross-platform, so it would support nvidia, ATI, Intel, CPUs, etc.

AFAIK only OpenCL 1.1 (or 1.2?) is available on nvidia though, not OpenCL 2.0 or 2.1. So, unfortunately, if you want to support nvidia (eg AWS GPU instances), then OpenCL may not be the best choice :-(

Re: Boosting Java performance using GPGPU [pdf]

#10

Post by sp332 » Mon, Aug 31, 2015, 9:02 PM UTC

dkersten wrote: post #9

sp332 wrote: post #8

Earlier quoted context omitted.

OpenCL is cross-platform, so it would support nvidia, ATI, Intel, CPUs, etc.

AFAIK only OpenCL 1.1 (or 1.2?) is available on nvidia though, not OpenCL 2.0 or 2.1. So, unfortunately, if you want to support nvidia (eg AWS GPU instances), then OpenCL may not be the best choice :-(

Oh, I didn't realize it was that bad. Looks like they barely implemented 1.2 and haven't announced support for 2.x at all. https://en.wikipedia.org/wiki/OpenCL#Timeline_of_vendor_impl...