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by ClassicMaN
Fri Jun 15, 2018 3:59 pm
Forum: General discussion
Topic: Raspberry Pi 3 Model B+ clusters
Replies: 35
Views: 4624

Re: Raspberry Pi 3 Model B+ clusters

Heater wrote:
Fri Jun 15, 2018 3:57 pm
Re-writing anything, from any language, in Python will make it 10 or 20 times slower. Unless it's already written in Python of course.
Whats your best option then? :mrgreen:
by ClassicMaN
Fri Jun 15, 2018 3:55 pm
Forum: General discussion
Topic: Raspberry Pi 3 Model B+ clusters
Replies: 35
Views: 4624

Re: Raspberry Pi 3 Model B+ clusters

What is the actual tool you are using for the resize? i used .dll which was made by 3rd party that allow me to create, edit, convert and resize images. Can you run it native on the MAC? This would probably give you a speed boost. yes that's why im looking at pi b+ or something better as long it is ...
by ClassicMaN
Fri Jun 15, 2018 1:27 pm
Forum: General discussion
Topic: Raspberry Pi 3 Model B+ clusters
Replies: 35
Views: 4624

Re: Raspberry Pi 3 Model B+ clusters

Today i wrote a quick script to find out whats my result would be like on a mac pro with regular HD 7200rpm, currently using VMware fusion windows 10 pro. My script run as classic asp/asp.net localhost as IIS here is the result i get: FileName: _D4M8455.tif Resize from: 4,928 x 3280 to 3000 x 2400 ...
by ClassicMaN
Fri Jun 15, 2018 8:50 am
Forum: General discussion
Topic: Raspberry Pi 3 Model B+ clusters
Replies: 35
Views: 4624

Re: Raspberry Pi 3 Model B+ clusters

:) Hello I'm kinda confused about this idea - i just wanna be sure before i buy those stuff Q1: Does this means if i get 5* of Raspberry Pi 3 Model B+, the cluster's performance will be increase from 1.4GHz to 7GHz ? Q2: if Q1 is yes - does this means that i could speed it up image resize as a batc...
by ClassicMaN
Fri Jun 15, 2018 8:41 am
Forum: General discussion
Topic: Raspberry Pi 3 Model B+ clusters
Replies: 35
Views: 4624

Re: Raspberry Pi 3 Model B+ clusters

here is the result i get: FileName: _D4M8455.tif Resize from: 4,928 x 3280 to 3000 x 2400 (8x10) Total Size: 123.3 MB StopWatch: 3 seconds Per MB: 41.1 MB per second A single gigabit Ethernet port can move data at a rate of 100 MB/sec. A Mac Pro (the round one) has two gigabit Ethernet ports. If it...
by ClassicMaN
Fri Jun 15, 2018 8:13 am
Forum: General discussion
Topic: Raspberry Pi 3 Model B+ clusters
Replies: 35
Views: 4624

Re: Raspberry Pi 3 Model B+ clusters

A Pi would definitely be I/O bound. A Pi won't come close to 41MB/s with a straight "cp" command I doubt it would be an exaggeration that it would take 5+ Pis all working in parallel just to average the output you'd get from a single x86 sub-$100 refurb PC. Yes that's a good idea to get refurb PC t...
by ClassicMaN
Fri Jun 15, 2018 8:10 am
Forum: General discussion
Topic: Raspberry Pi 3 Model B+ clusters
Replies: 35
Views: 4624

Re: Raspberry Pi 3 Model B+ clusters

I would not bother trying to solve this problem with one or more Raspberry Pi. The better, meaning better performing, solution would be to have a dedicated Intel based computer to do the job. The reason is very simple, most of the work is moving data, from disk to RAM, from RAM to processor, from p...
by ClassicMaN
Wed Jun 13, 2018 2:07 pm
Forum: General discussion
Topic: Raspberry Pi 3 Model B+ clusters
Replies: 35
Views: 4624

Re: Raspberry Pi 3 Model B+ clusters

A Raspberry pi is going to be a LOT slower than a mac at processing tiff files - unless it is a very old mac. You would probably need 5 Raspberry pi's to match the performance of your MAC, so to go faster you will need a lot of pi's. You need to understand why your current processing is slow to see...
by ClassicMaN
Wed Jun 13, 2018 1:45 pm
Forum: General discussion
Topic: Raspberry Pi 3 Model B+ clusters
Replies: 35
Views: 4624

Re: Raspberry Pi 3 Model B+ clusters

i can do this on a mac but i have to wait for hours to get this batch done before i could do something else! I'm not sure why you would have to wait before doing anything else. Most computers, even Macintoshes (but maybe not the Mac Classic), have the ability to multitask so that more than one prog...
by ClassicMaN
Tue Jun 12, 2018 6:04 pm
Forum: General discussion
Topic: STICKY: Introduce yourself!
Replies: 3462
Views: 67833

Re: STICKY: Introduce yourself!

Hello world, All of you got a amazing story to tell.. Lol not much to tell my self - my name is Manvin from England, I'm planing to start a up a new company as school photographer - developing e-commerce web site right now - this take ages to modify to meet my requirement. im interested raspberry pi...
by ClassicMaN
Tue Jun 12, 2018 5:46 pm
Forum: General discussion
Topic: Raspberry Pi 3 Model B+ clusters
Replies: 35
Views: 4624

Re: Raspberry Pi 3 Model B+ clusters

Indeed. However we are talking about computers and batch jobs. Our OP used the word "batch" which I take to mean that there are many TIFF images to be processed not just one. That is to say many "babies". So there is some chance of getting multiple Pi to process the batch in less time than one. Tha...
by ClassicMaN
Tue Jun 12, 2018 5:45 pm
Forum: General discussion
Topic: Raspberry Pi 3 Model B+ clusters
Replies: 35
Views: 4624

Re: Raspberry Pi 3 Model B+ clusters

drgeoff wrote:
Tue Jun 12, 2018 12:38 pm
It takes a woman 9 months to produce a baby.

9 women can produce 9 babies in 9 months.

9 women cannot produce 1 baby in 1 month.
:mrgreen: it would be nice to have 1 baby in 1 month, 9 months is a long time to wait. :lol:

ClassicMaN
by ClassicMaN
Tue Jun 12, 2018 5:41 pm
Forum: General discussion
Topic: Raspberry Pi 3 Model B+ clusters
Replies: 35
Views: 4624

Re: Raspberry Pi 3 Model B+ clusters

> Of course software has already been developed to do such work distribution. I can't think what any of them are called just now. > Many hits for MPI and Raspberry: https://www.google.de/search?q=parallel+mpi+raspberry&oq=parallel+mpi+raspberry E.g. "Raspberry Pi Supercomputer with MPI": https://ww...
by ClassicMaN
Tue Jun 12, 2018 5:39 pm
Forum: General discussion
Topic: Raspberry Pi 3 Model B+ clusters
Replies: 35
Views: 4624

Re: Raspberry Pi 3 Model B+ clusters

Clustering computers, like the Pi, does not magically make any software go many times faster. But, if you have many jobs to do, like thousands of images to process, you could run the same program on many Pi and send it the images to work on. Then collect the processed images when it is done. This i...
by ClassicMaN
Tue Jun 12, 2018 10:48 am
Forum: General discussion
Topic: Raspberry Pi 3 Model B+ clusters
Replies: 35
Views: 4624

Raspberry Pi 3 Model B+ clusters

:) Hello I'm kinda confused about this idea - i just wanna be sure before i buy those stuff Q1: Does this means if i get 5* of Raspberry Pi 3 Model B+, the cluster's performance will be increase from 1.4GHz to 7GHz ? Q2: if Q1 is yes - does this means that i could speed it up image resize as a batch...

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