Parallella, Raspberry Pi, FPGA & All That Stuff

cristipurdel
cristipurdel
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Sorry not to search the

Sorry not to search the entire post, but did someone manage to run WUs on Android GPUs?

robl
robl
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cristipurdel wrote:Sorry not

cristipurdel wrote:
Sorry not to search the entire post, but did someone manage to run WUs on Android GPUs?

maybe this thread:  https://einsteinathome.org/content/android-app-release-feedback-thread?page=4#comment-177107

N30dG-ARM
N30dG-ARM
Joined: 20 Oct 17
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I've at least managed to run

I've at least managed to run the openCL-BRP on a Mali-GPU of a ARM-Chip. But this wasn't on Android, it was on Linux. I don't think that the Android Boinc Client supports openCL.

Sid
Sid
Joined: 17 Oct 10
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N30dG-ARM wrote: I've at

N30dG-ARM wrote:

I've at least managed to run the openCL-BRP on a Mali-GPU of a ARM-Chip. But this wasn't on Android, it was on Linux. I don't think that the Android Boinc Client supports openCL.

 

Can you please share the application? I've tried to build OpenCL- BRP too but my application has almost 50% of WUs as invalid.

N30dG-ARM
N30dG-ARM
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Sid wrote: Can you please

Sid wrote:

Can you please share the application? I've tried to build OpenCL- BRP too but my application has almost 50% of WUs as invalid.

Yes, I probably could. My openCL@arm-journey was over two years ago, I still have all the files but I've tryed a lot... rewriting some of the openCL-Code, specifically for the Midgard-GPU (Mali-Txxx) I was unsing. Which is by the way, a vector-based GPU. This has changed with the newer Bifrost-GPU's (Gxx), they process data scalar, so I'm not shure that my app would run on these, and if it run, performance will probably not that great.

But anyway, I also had also "some" invalids. If I remember correctly, my rate was something between 20-30%. The BRP is quite vulnerable for that, even on CPU's. It is enough to compile the BRP with GCC >5 and you will get around 20% invalid's. I'm quite shure where this problem comes from, but there is nothing you can do about it, without touching the official BRP-App and this won't be happen. I'm contacted the e@h-dev's about that some time ago but there focus is more towards the FGRP and the GW-Search, leaving them no time for the BRP.

Anyway, when you still intressted in my openCL-App, I could try out which of the many openCL-binary's i have lying around, is the "good" one(in terms of invalids) and share it with you.

But I wouldn't put to much effort in this.

Sorry that I don't have better news for you :(

PorkyPies
PorkyPies
Joined: 27 Apr 16
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The rumored Pi4 8GB model is

The rumored Pi4 8GB model is now available for purchase. To quote from their blog on raspberrypi.org:

Quote:
The BCM2711 chip that we use on Raspberry Pi 4 can address up to 16GB of LPDDR4 SDRAM, so the real barrier to our offering a larger-memory variant was the lack of an 8GB LPDDR4 package. These didn’t exist (at least in a form that we could address) in 2019, but happily our partners at Micron stepped up earlier this year with a suitable part. And so, today, we’re delighted to announce the immediate availability of the 8GB Raspberry Pi 4, priced at just $75.

I assume that is in USD. Also there is a 64 bit version of Debian in the works with Pi customizations (they don't want to refer to it as Raspbian apparently).

robl
robl
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so regarding the pi4s where

so regarding the pi4s where do we stand on:

  1. usb boot
  2. support for the onboard gpu

I have not seen anything recently to provide encouragement.

Personally I feel we need to address the pi4's current capabilities before marching forward with "new hardware options".  But that is just my thinking.

PorkyPies
PorkyPies
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Has anyone tried the new

Has anyone tried the new Raspberry Pi OS yet?

Comes in 32 bit and 64 bit flavors. Unfortunately Einstein don't have ARM64 apps, although the N30DG-ARM special apps might work now it has a 64 bit userland. They refer to the 64 bit version as a beta.

I have done an "apt update/apt upgrade" which got around 30 updates, including the kernel. I can't see anything different but then I haven't done a "full-upgrade".

PorkyPies
PorkyPies
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robl wrote:so regarding the

robl wrote:

so regarding the pi4s where do we stand on:

  1. usb boot
  2. support for the onboard gpu

I have not seen anything recently to provide encouragement.

Personally I feel we need to address the pi4's current capabilities before marching forward with "new hardware options".  But that is just my thinking.

From reading Toms Hardware they mention the USB boot was working but the latest update broke it. They suggest putting the previous release elf files back to get it going again. See Rasbberry Pi OS offers newer features, breaks USB booting

As for support for the onboard GPU, according to the Raspberry Pi post about the experimental 64 bit Raspberry Pi OS the known features mention chrome had hardware acceleration but the 64 bit build does not. There is no mention of OpenCL support which is what I think you were asking about.

 

robl
robl
Joined: 2 Jan 13
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PorkyPies wrote:robl

PorkyPies wrote:

robl wrote:

so regarding the pi4s where do we stand on:

  1. usb boot
  2. support for the onboard gpu

I have not seen anything recently to provide encouragement.

Personally I feel we need to address the pi4's current capabilities before marching forward with "new hardware options".  But that is just my thinking.

From reading Toms Hardware they mention the USB boot was working but the latest update broke it. They suggest putting the previous release elf files back to get it going again. See Rasbberry Pi OS offers newer features, breaks USB booting

As for support for the onboard GPU, according to the Raspberry Pi post about the experimental 64 bit Raspberry Pi OS the known features mention chrome had hardware acceleration but the 64 bit build does not. There is no mention of OpenCL support which is what I think you were asking about.

 

Exactly what I was looking for regarding the usb boot.  And you were correct about my interest in OpenCL.

EDIT:  Just ordered an 8GB NOTE:  http://adafruit.com is already out on the 8GB

I had to delete the link and image of a Pi enclosure for multiple Piz because the site was showing unavailable.

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