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by owaizshareef
Mon Sep 19, 2016 9:09 pm
Forum: General programming discussion
Topic: HPL - application.
Replies: 0
Views: 493

HPL - application.

Hi, I am trying to benchmark raspberry pi 3 with HPL, every time i run the test the cpu shoots to 1.2GHz and right away the system crashes, i have tried with natural convection, fan, and heat sink with fan. the problem size i am giving is 6000. What factors make the system to crash apart from the hi...
by owaizshareef
Thu Sep 08, 2016 1:46 am
Forum: General discussion
Topic: raspberry pi 3 power consumption.
Replies: 1
Views: 764

raspberry pi 3 power consumption.

Hi all,

I am working on a project, which makes me to calculate the power consumption of a raspberry pi 3, i figured it out to be 5v x 0.75A = 3.5w under high load.

Is there a way we can measure or calculate the power consumed by the processor alone. at any given load.

Pls do reply,

Thanks.
by owaizshareef
Fri Aug 26, 2016 2:43 am
Forum: General discussion
Topic: Pi 3 Overheating Issue?
Replies: 110
Views: 119466

Re: Pi 3 Overheating Issue?

We came across the overheating issue in our internal engineering review of this product. 207F (97C) with CPU load only in 71F (22C) ambient. We attempted to measure CPU+GPU load but the board crashed on numerous attempts. We saw temperatures go up to 210+F. img_thermal_1457442329126.jpg After heats...
by owaizshareef
Wed Aug 24, 2016 11:53 pm
Forum: Advanced users
Topic: Stressing raspberry pi 3
Replies: 1
Views: 1069

Stressing raspberry pi 3

Hi all, I am trying to stress raspberry pi 3 to operate at 1200mhz and record relative temperature, i am seeing the results of other users they are getting the pi heated to 100°c on the surface read by thermometer, but when i perform the same test i am getting the temperature read by command as 81°,...
by owaizshareef
Wed Aug 03, 2016 11:27 pm
Forum: Other programming languages
Topic: Parallel programming and Benchmarking
Replies: 7
Views: 2322

Re: Parallel programming and Benchmarking

Do you mean this HPL Benchmark http://www.netlib.org/benchmark/hpl/ ? All instructions are on that site. Yes, HPL Bench-marking. but i need to build cluster using MPI (message passing interface) so that i can execute HPL on all cores of four raspberry pi. i first need help with the procedure of mak...
by owaizshareef
Wed Aug 03, 2016 8:46 pm
Forum: Other programming languages
Topic: Parallel programming and Benchmarking
Replies: 7
Views: 2322

Parallel programming and Benchmarking

Hi all. I am trying to construct a parallel computing cluster out of four raspberry pi 3 boards and run a HPL bench marking program. so that i can test the highest no of Gflops a cluster of 4 raspberry pi can achieve. i am looking for some procedure. any kind of help is mostly appreciated. thank you.
by owaizshareef
Fri Jul 29, 2016 5:04 pm
Forum: Advanced users
Topic: Overclocked Pi3: Linpack bench & Cpuburn-a53 (at same time)
Replies: 9
Views: 2826

Re: Overclocked Pi3: Linpack bench & Cpuburn-a53 (at same ti

Hi. I am trying to implement HPL linpack program on raspberry pi to calculate the gflops. i am following the tutorial "https://www.howtoforge.com/tutorial/hpl-high-performance-linpack-benchmark-raspberry-pi/". but after running the make command i am getting following error. make[1]: Enteri...
by owaizshareef
Thu Jul 28, 2016 9:38 pm
Forum: C/C++
Topic: HPL Linpack error.
Replies: 1
Views: 1385

HPL Linpack error.

hello every one. I am trying to implement HPL linpack program on raspberry pi to calculate the gflops. i am following the tutorial "https://www.howtoforge.com/tutorial/hpl-high-performance-linpack-benchmark-raspberry-pi/". but after running the make command i am getting following error. ma...
by owaizshareef
Wed Jul 20, 2016 3:43 pm
Forum: Beginners
Topic: PI 3 and Raspbian Wheezy
Replies: 48
Views: 47166

Re: PI 3 and Raspbian Wheezy

Anyone found a way to install the WiFi chipset on Wheezy? After I update the Wheezy, I still cannot have luck to connect to the Internet with using the onboard Wifi. I only can use the WiPi.. Forget it. What stops you from going to Jessie? sir, i am doing parallel computing using four raspberry pi....
by owaizshareef
Mon May 23, 2016 1:06 am
Forum: Raspberry Pi OS
Topic: STICKY: Jessie (now defunct and replaced with Stretch) Q&A
Replies: 396
Views: 249709

Re: Jessie Q&A

I am building a raspbery pi cluster. new os (raspbian jeaasy), i have to create drives and make it available so that slave nodes can access the drive. Previously in raspbian whezzy - Command "sudo service rpcbind start" , "sudo update-rc.d rpcbind enable" was used. but it dosent ...
by owaizshareef
Mon May 23, 2016 12:50 am
Forum: Advanced users
Topic: mounting drives for parallel computing
Replies: 1
Views: 1073

mounting drives for parallel computing

I am building a raspbery pi cluster.
new os (raspbian jeaasy),
i have to create drives and make it available so that slave nodes can access the drive.

Previously in raspbian whezzy - sudo service rpcbind daemon was used.
but it dosent work any more,
any one having experience in this pls help
by owaizshareef
Sat May 21, 2016 8:16 pm
Forum: Troubleshooting
Topic: Mounting drives [rpcbind]
Replies: 3
Views: 3220

Mounting drives [rpcbind]

hi,

i am building a cluster of pi's,

i am using "sudo service rpcbind start" and "sudo update-rc.d rpcbind enable" , to set mount drives and auto update on reboot. but this commands are not working.
the tutorial i am following is for prior version of rpi-2 i believe.
by owaizshareef
Thu May 19, 2016 11:05 pm
Forum: Troubleshooting
Topic: Static ip - no internet
Replies: 9
Views: 5696

Static ip - no internet

i have used "sudo nano /etc/dhcpcd.conf" and added static address, after reboot the raspberry pi shows static address in ifconfig and i can also access it using putty, but it is not able to connect to the internet. i have checked the router and this device does not show up. I am sure there...
by owaizshareef
Wed Apr 06, 2016 1:56 pm
Forum: Troubleshooting
Topic: Assigning a static ip address.
Replies: 1
Views: 610

Assigning a static ip address.

Hi guys, i am working on making a raspberry pi cluster, for this i have to assign a static ip to a pi, when i go to " sudo vim /etc/network/interfaces" , as usually it would give output as "auto eth0 allow-hotplug eth0 iface etho inet dhcp" where we can edit dhcp and write static...

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