Raspberry pi cluster

jasim jamil · December 28, 2020, 05:15

Hello everybody.

I intend to make a cluster using raspberry pi 4 for SU2 and openfoam. I intend to use raspberry pi 4 (for those who dont know, it is a small single board computer with specs which are Broadcom BCM2711, ARM v8, Quad-core Cortex-A72 64bit SoC@ 1,5GHz, 4 gb ram and 32 gb memory). To make a cluster, i will be using an unmanaged switch with 32 ethernet ports and all the board will communicate vis ssh. So, i will be having 32 boards and they will use ubuntu as OS. I will be using openmpi for parallel computing. I wanted to ask if this configuration will work if i want to make large simulations with 4 or 5 millions of nodes ? Does having ram and memory separated in different boards the same as having a single pc with 128 cores, 128 gb of ram and 1 tb of memory?
Thank you

flotus1 · December 28, 2020, 07:45

You are not the first to attempt a setup like this. Surf around a bit, and you will find write-ups from similar projects, and the problems they faced.
If you want to tinker with it for educational purposes, go for it. But start smaller than 32 nodes.
If you want to use it to get stuff done, nope out of it as fast as you can. And get a normal workstation or small cluster.

December 28, 2020, 05:15	Raspberry pi cluster	#1
jasim jamil New Member Jasim Join Date: Dec 2020 Posts: 1 Rep Power: 0	Hello everybody. I intend to make a cluster using raspberry pi 4 for SU2 and openfoam. I intend to use raspberry pi 4 (for those who dont know, it is a small single board computer with specs which are Broadcom BCM2711, ARM v8, Quad-core Cortex-A72 64bit SoC@ 1,5GHz, 4 gb ram and 32 gb memory). To make a cluster, i will be using an unmanaged switch with 32 ethernet ports and all the board will communicate vis ssh. So, i will be having 32 boards and they will use ubuntu as OS. I will be using openmpi for parallel computing. I wanted to ask if this configuration will work if i want to make large simulations with 4 or 5 millions of nodes ? Does having ram and memory separated in different boards the same as having a single pc with 128 cores, 128 gb of ram and 1 tb of memory? Thank you

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[Other] Basic questions about OpenFOAM cluster running and installing	Fauster	OpenFOAM Installation	0	May 25, 2018 16:00
SAP cluster resource/services not coming online on cluster node 2	Nthar1@yahoo.com	Hardware	0	May 9, 2017 06:55
[OpenFOAM.org] OpenFOAM Cluster Setup for Beginners	Ruli	OpenFOAM Installation	7	July 22, 2016 05:14
Improper data to cluster through .cas and .dat files	kaeran	FLUENT	0	October 24, 2014 05:10
Why not install cluster by connecting workstations together for CFD application?	Anna Tian	Hardware	5	July 18, 2014 15:32

December 28, 2020, 07:45		#2
flotus1 Super Moderator Alex Join Date: Jun 2012 Location: Germany Posts: 3,428 Rep Power: 49	You are not the first to attempt a setup like this. Surf around a bit, and you will find write-ups from similar projects, and the problems they faced. If you want to tinker with it for educational purposes, go for it. But start smaller than 32 nodes. If you want to use it to get stuff done, nope out of it as fast as you can. And get a normal workstation or small cluster.