---
tags: computer science, raspberry
---

# How To Build A Computer Cluster by Raspberry Pi 4Bs

Author: Zheng-Liang Lu (Arthur)
Time: ~~2020-09-22 ~ present~~ 2021-10-12 ~ present


## ++Hardwares++

### Raspberry Pi 4 Model B

- Board: https://www.raspberrypi.com.tw/28040/raspberry-pi-4-model-b/

- https://goods.pchomeus.com/item/show?30202451040494

## ++Softwares++

### Operating Systems
- Ubuntu for RP4b: https://ubuntu.com/download/raspberry-pi
- References
- [Raspberry Pi OS](https://www.raspberrypi.com/software/)
- [Raspberry Pi 的基礎 - 40 套作業系統任你選之 2017 威力加強版](http://blog.itist.tw/2016/12/34-best-operating-systems-for-raspberry-pi.html)
- [Linux Commodity Clusters Overview](https://computing.llnl.gov/tutorials/linux_clusters/)

### Performance Benchmarks
- https://www.itread01.com/content/1549618756.html
- CPU:
- http://www.roylongbottom.org.uk/Raspberry%20Pi%20Benchmarks.htm
- https://www.howtoforge.com/tutorial/hpl-high-performance-linpack-benchmark-raspberry-pi/
- https://wiki.archlinux.org/index.php/Stress_testing
- https://socialcompare.com/en/comparison/raspberrypi-models-comparison
- Disk
- https://linuxconfig.org/how-to-benchmark-disk-performance-on-linux
- https://www.akitio.com/information-center/achieve-best-transfer-speeds-external-drives
- https://magpi.raspberrypi.org/articles/raspberry-pi-4-specs-benchmarks

time dd if=/dev/zero of=~/sf_R_DRIVE/tmp.out bs=1G count=1 oflag=dsync

- Ramdisk
- https://magiclen.org/linux-ramdisk/
- https://www.itread01.com/content/1547865917.html
- https://linuxconfig.org/how-to-monitor-ram-usage-on-linux
- Cluster monitoring

## ++Applications++

### Financial Crawler
- Taiwan markets: stocks, options and futures, foreign exchanges, chips?

### Distributed Computing
- Computation-intensive problems:
- Monte Carlo simulation
- https://downloads.ti.com/mctools/esd/docs/opencl/examples/monte_carlo.html
- https://digitalcommons.mtech.edu/cgi/viewcontent.cgi?article=1198&context=grad_rsch
- Ising Model
- http://www.physik.uni-leipzig.de/~bruenecke/Report.pdf
- Primes
- https://magpi.raspberrypi.org/articles/build-a-raspberry-pi-cluster-computer
- References: https://archive.fosdem.org/2020/schedule/event/rpi_cluster/attachments/slides/3635/export/events/attachments/rpi_cluster/slides/3635/Introducing_HPC_with_a_Raspberry_Pi_Cluster.pdf
- http://www.physik.uni-leipzig.de/~bruenecke/Report.pdf
- https://github.com/mskr/clustermcml
- Spark
- https://spark.apache.org/
- Hadoop
- https://hadoop.apache.org/
- http://tw.gitbook.net/hadoop/index.html
- https://medium.com/analytics-vidhya/build-raspberry-pi-hadoop-spark-cluster-from-scratch-c2fa056138e0
- Holden Karau, Andy Konwinski, Patrick Wendell, [Learning Spark](https://www.oreilly.com/library/view/learning-spark/9781449359034/), 2015
- Sample code: https://github.com/databricks/learning-spark
- Foundation of Linux Kernel
- https://www.facebook.com/groups/system.software2020
- https://ccckmit.gitbooks.io/lowlevelc/content/
- https://www.spreered.com/compiler_for_dummies/?fbclid=IwAR18HW2LvKNG-zD0WReqb6PX2jrPOZ2yxqM6f0M_SA_rGw3t_bCNEJQ91TQ
- https://codertw.com/%E7%A8%8B%E5%BC%8F%E8%AA%9E%E8%A8%80/648114/

### Trading Simulation
- 模擬交易所之搓合、買賣家掛單

### Network Attached Storage (NAS) & Home Media Center
- https://magpi.raspberrypi.org/articles/build-a-raspberry-pi-nas
- RAID: https://www.youtube.com/watch?v=Y_l1BCCqZSQ
- SSD? https://24h.pchome.com.tw/prod/DRAH5U-A90084OHG
- https://www.youtube.com/watch?v=bpvlEbdA6qI&t=187s
- How to build a Raspberry Pi 4 NAS Server?
- Samba and OMV: https://www.seeedstudio.com/blog/2019/12/24/how-to-build-a-raspberry-pi-4-nas-server-samba-and-omv/
- https://www.youtube.com/watch?v=2Lb2cNOi3tM

### Object Detection Using tensorflow
- https://youtu.be/Vg9rrOFmwHo

### Blockchains
- https://www.rs-online.com/designspark/exploring-ethereum-with-raspberry-pi-part-1-getting-started

### Old-School Game Center
- https://retropie.org.uk/

## Command Notes
- Screenshot
- https://help.ubuntu.com/stable/ubuntu-help/screen-shot-record.html
- How to change the hostname? https://linuxize.com/post/how-to-change-hostname-on-debian-9/

hostnamectl 

- https://fio.readthedocs.io/en/latest/fio_doc.html