Application "Binary Radio Pulsar Search (Arecibo) 1.06" fails with "Computation error" on Raspberry Pi Arm64
22 Feb 2022 2:23:10 UTC
Topic 227052
(moderation:
I am running Einstein@Home on my Raspberry Pi 4. All the applications with the name "Binary Radio Pulsar Search (Arecibo) 1.06" fails with "Computation error", while tasks with the name "Gamma-ray pulsar search #5 1.16" work fine. How do I start diagnose this?
Have you installed the 32 bit
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Have you installed the 32 bit Armhf libraries on your 64 bit device and OS?
The BRP4 tasks use a 32 bit only application. They won't run without the armhf libraries.
Might want to read this thread.
Parallella, Raspberry Pi, FPGA & All That Stuff
Nope, I haven't. Which armhf
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Nope, I haven't. Which armhf library do I need?
I did the followings: dpkg
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I did the followings:
dpkg --add-architecture armhf
apt update
apt-get install libc6:armhf libstdc++6:armhf
Now I get this:
root@hawkeye:/var/lib/boinc-client/projects/einstein.phys.uwm.edu# ./einsteinbinary_BRP4_1.06_arm-unknown-linux-gnueabihf
./einsteinbinary_BRP4_1.06_arm-unknown-linux-gnueabihf: symbol lookup error: ./einsteinbinary_BRP4_1.06_arm-unknown-linux-gnueabihf: undef
ined symbol: h_errno, version GLIBC_PRIVATE
Did you add the new entry
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Did you add the new entry into the cc_config.xml file in the Options section?
<options> <alt_platform>arm-unknown-linux-gnueabihf</alt_platform> </options>You might also try
export LD_LIBRARY_PATH=/usr/local/lib/arm-linux-gnueabihf/.
I did add that entry, where
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I did add that entry, where do I put the "export LD_LIBRARY_PATH=/usr/local/lib/arm-linux-gnueabihf/" line?
You just open a Terminal and
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You just open a Terminal and input that line.
From the error you showed I think that one of the symbol libraries is not being linked to correctly.
The export should add the armhf library to the PATH statement and hopefully find the library.
I had issues adding the armhf architecture for my Pi4 for Universe but solved it with the steps I've mentioned so far. I thought the same should work for Einstein.
Oh, I think I remember adding a couple of other libraries also. Try this too.
sudo apt install libgomp1:armhf libboinc7:armhf
You have rebooted and restarted BOINC by now I assume. I had to get the new architecture detected.
Out of ideas now. Post for help over on BOINC forums also if no one else pipes up here with advice.
This appears to need some
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This appears to need some sort of recompilation, I resolved it based on the explanation on this thread:
https://einstein11.aei.uni-hannover.de/content/rpi-computation-error
I basically installed the binaries in here:
https://einsteinathome.org/content/high-speed-linux-brp-app-odroid-c2
OK, good to hear you got
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OK, good to hear you got something working.
They run well on two Windows
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They run well on two Windows dektop but also on a Linux Virtual Machine running OpenSuSE Tumbleweed which is a development OS with kernel 5.16.11. The bear the Arecibo name.
Tullio