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23 votes

Does Raspberry Pi cluster make sense for a small rendering farm

The general consensus is that clusters are a waste of bandwidth. Yes, your cluster will have access to the sum of all the processing power and RAM, but you are introducing network latency into your ...
tlhIngan's user avatar
  • 3,372
6 votes

Does Raspberry Pi cluster make sense for a small rendering farm

Probably not. There's a few issues here. The raspberry pi runs the ARM arcitecture, and I've never seen rendering software that runs on it. The best renderfarm is useless if your software won't work. ...
Journeyman Geek's user avatar
6 votes
Accepted

Does Raspberry Pi cluster make sense for a small rendering farm

Short answer: probably It really depends on whether or not the process is able to be parallelized. Some processes just can't be split among the RPi's and therefore would not have any benefit from a ...
sir_ian's user avatar
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5 votes
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Clustering the 3.3v and 5v rails

NO! Do not interconnect those power sources or you will release the power supply Genie. Connect one ground (GND) line between the two Raspberry Pi's and any other power supplies all you want but ...
Larry Kollasch's user avatar
5 votes

largest raspberry pi cluster

We can't really tell since anyone (including me) might have already built a 5000-node cluster and simply did not publish their work. The largest one that's made aware to the public is, in fact, the ...
Aloha's user avatar
  • 7,156
5 votes
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Raspberry Pi Cluster for Computation

For a rough measurement, I generated a 2000 x 2000 matrix with random integer entries between 0 and 9, and timed computation of the determinant in SageMath (I did this twice, with similar results). On ...
Julian Rosen's user avatar
4 votes

Combine 2 Raspberry Pi 3

No you can't combine 2 Pi's to have better CPU speed. Any software designed for a cluster must be specifically written to do so. If you haven't already I suggest buying a Pi3B+, it is noticeably ...
CoderMike's user avatar
  • 7,007
4 votes

Can I just create a python thread per raspberry pi for parallel processing?

If you are going for max speed, then Python is not your friend. What it gains in flexibility it pays for in reduced capability for the compiler to perform substantial optimizations. Certain ...
Brick's user avatar
  • 1,377
3 votes

Does Raspberry Pi cluster make sense for a small rendering farm

Of course not! Each node in your cluster needs to be able to load all of the textures / geometry etc. So it would limit the total size of your source data to (much less than) 1GB, but 20 copies. ...
Agate's user avatar
  • 31
3 votes

Is it possible to install Rocks Cluster Distribution on Raspberry Pi?

No, it is not. No ARM support and Centos 6 was latest build.
Fred Phillips's user avatar
3 votes

Power multiple Pis through 5V GPIO and 5V wall wart

I have a couple of remarks which won't fit in the comment: First, while 1A per Pi should be sufficient (assuming no USB devices plugged in and WiFi/BT not used), you may get quite close to the limit ...
Dmitry Grigoryev's user avatar
3 votes

Can Compute Modules provide clustering and high availability?

While not doing this with compute modules, I have 6 PI3's running together to test HA setups (database cluster sometimes, load balanced nginx servers other times). It's way cheaper to buy 6 pi's (and ...
Michael's user avatar
  • 326
3 votes

Combine 2 Raspberry Pi 3

It can be a common misconception that you can sort of just bootstrap machines together and get greater performance. Sadly when it comes to building clusters, especially of raspberry pi's the use cases ...
drewrip's user avatar
  • 31
3 votes

Raspberry Pi Cluster for Computation

As Julian mentioned, a Pi based solution won't win any calculation benchmark records. That isn't what they are intended for; however, if you are looking simply as a learning testbed then it is an ...
William Roney's user avatar
3 votes

How to power Rpi4 cluster?

90W / 9 devices is 10W per device. That's about enough for a Pi 4 alone, but those 18 USB sticks will also need some power, perhaps another 20W-30W. And you'll want to have some extra power reserved ...
Dmitry Grigoryev's user avatar
3 votes

How to power Rpi4 cluster?

The industrial solution to this is to use a blade, such as a Bitscope Blade
Nick's user avatar
  • 776
3 votes
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What tasks can be performed faster on a raspberry pi cluster?

"what applications allow multithreading. My browser for example does, so I could get a better browsing experience by using a couple raspberry pis"* No. A cluster is not equivalent to one ...
goldilocks's user avatar
  • 59.2k
3 votes
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do i get more io from a cluster?

A cluster doesn't create a single, combined entity. Special software is developed to run applications faster on a cluster, by separating out jobs to each node in the cluster. So yes, in theory, your ...
Chad G's user avatar
  • 1,063
2 votes

Mult-head micro-usb cable

Yes, such cables do exist and are often called "multi charging cables": Of course you can make one yourself, especially if you want to minimize the excess length (e.g. if your RPi boards are stacked ...
Dmitry Grigoryev's user avatar
2 votes
Accepted

Proper use of a rpi cluster

Depending on how you build your cluster, you can ssh individually to each of the nodes from the head node, or even ssh directly from your PC into each node. In short, your cluster can still act like ...
Aloha's user avatar
  • 7,156
2 votes

Does Raspberry Pi cluster make sense for a small rendering farm

If the speed of the new pi3 is such (looking at mips reports) that it takes about 26 of them to equal one Haswel Xeon or i7, I conclude that it's cheaper to use desktop processors. My desktop has 32GB ...
JDługosz's user avatar
  • 287
2 votes

USB Hub to power 8 Pis

I don't think that the device you linked to will do what you want. It's power supply is 5V 2A, which is not going to last very long trying to power 8x Raspberry Pi B's or B+s. According to this ...
YetAnotherRandomUser's user avatar
2 votes

USB Hub to power 8 Pis

A USB hub will likely not be enough to power 8 Pi's. The spec is for 500mA per port (USB 2) and 900mA (USB 3). I don't know of any hub that could supply 8 Amps (1 amp per port). All of the Pi cluster ...
Steve Robillard's user avatar
2 votes
Accepted

Power multiple Pis through 5V GPIO and 5V wall wart

Yes, you can power all your Pis from one power supply with sufficient capacity. You lose the polarity and fuse protection of powering via the microUSB socket. You can mitigate any risks by adding ...
joan's user avatar
  • 71.2k
2 votes

Internal network between multiple RPis

Assuming pi_0 has IP 10.0.1.1 on the external network and www is the connection to the internet. Just enable routing (add net.ipv4.ip_forward=1 in /etc/sysctl.conf) on pi_0, define a static route on ...
framp's user avatar
  • 900
2 votes

Does Raspberry Pi cluster make sense for a small rendering farm

To be honest, it depends on what you are computing. Raspberry Pi are made to be versatile, and do a lot of different things. The IoT, personal computers, supercomputers, servers, etc. If you ...
nicholas's user avatar
2 votes

One Python Program - Several Raspberries

Load Balancing is the distribution of work over a series of devices in a client server model. It's totally unrelated to what you're trying to accomplish. A local cloud, aka fog computing is simply ...
Jacobm001's user avatar
  • 11.9k
2 votes
Accepted

Can Pi Zeros be used in a cluster like Pi 3s?

It shouldn't matter if you use a Pi 3 or a Pi Zero in a cluster; functionally they are both single-board computers that can run Linux. Of course, you should expect significantly worse performance from ...
Aurora0001's user avatar
  • 6,328
2 votes

Powering a number of Pi from a single bench top power supply

This answer assumes you already understand Raspberry Pi power limitations. Powering many Raspberry Pi's is a challenge in that they need to be properly supported and cooled. Applying 5V directly via ...
OyaMist's user avatar
  • 1,119
2 votes

Blockchain and Raspberry Pi

I found it requires a distributed computer system (Cluster)... I think you've misunderstood something, although it depends a bit on how strictly you want to define your terms -- if you want to ...
goldilocks's user avatar
  • 59.2k

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