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====== Dr. B. in da SPECTORS project ======

===== Cloud Computing =====

The idea stems from Prof. Sandro Leuchter. Together with Matthias Krauledat he purchased 60 Dell R220 power edge servers to set up a cloud computing environment: Infrastructure as a Service (IaaS).

The setup of each Dell R220 as of 2014:

Components

  * 1 Dell(TM) PowerEdge(TM) R210/R220 Rack Mount Server Heat Sink
  * 1 [[http://ark.intel.com/de/products/78955/Intel-Celeron-Processor-G1820-2M-Cache-2_70-GHz|Intel Celeron G1820 2.7GHz]], 2M Cache, No Turbo, 2C, 54W
  * 1 MOD,PWA,PLNR,SV,TRPM,PER220
  * 1 3.5" Chassis with up to 2x3.5 Cabled Hard Drives
  * 1 2.5" Chassis with up to 2x2.5 Cabled Hard Drives
  * 1 Riser with Single x16 Gen3 PCIe Slot
  * 1 iDRAC Port Card
  * 1 Electronic System Documentation and OpenManage DVD Kit for R220
  * 1 1.600MHz UDIMMs
  * 1 4GB UDIMM, 1.600MT/s, Niederspannung, Single Rank, x4 Datenbreite
  * 1 500GB 7.2k RPM Near-Line SAS 6Gbps 2.5in Cabled Hard Drive
  * 1 PERC H310 Integrated RAID Controller, Full Height
  * 2 C13 auf C14, PDU Stil, 10A, 6,5ft Netzkabel
  * 1 H310 Cable, SAS R220
  * 1 No Mouse Included
  * 1 1U/2U Static Rails for 2-Post & 4-Post Racks
  * 1 iDRAC7 Enterprise 

Software

  * 1 Leistungsoptimiert BIOS Einstellungen

Service

  * 1 Base Warranty
  * 1 1Yr Basic Warranty - Next Business Day - Minimum Warranty
  * 1 3Yr ProSupport and Next Business Day On-Site Service
  * 1 INFO 1Yr ProSupport and Next Business Day On-Site Service
  * 1 INFO Declined Remote Consulting

===== R220 =====

  * http://www.dell.com/us/business/p/poweredge-r220/pd?sc_err=noocs
  * http://www.dell.com/us/business/p/poweredge-r220/pd
  * http://i.dell.com/sites/doccontent/shared-content/data-sheets/en/Documents/PowerEdge_R220_Spec_Sheet.pdf

==== CPU Options for PowerEdge R220 ====

**Intel® Xeon® processor E3-1200 v3** product family, Intel Pentium®, Intel Celeron®, Intel Core®

This v3 is a Haswell architecture: https://de.wikipedia.org/wiki/Intel_Xeon#Haswell-Generation

https://www.computerbase.de/2014-05/intel-xeon-e3-1200-v3-haswell-refresh-spezifikationen/

**BUG in Haswell: TSX not working properly.** \\
"In August 2014, Intel announced that a bug exists in the TSX implementation on Haswell, Haswell-E, Haswell-EP and early Broadwell CPUs, which resulted in disabling the TSX feature on affected CPUs via a microcode update. The bug was fixed in F-0 steppings of the vPro-enabled Core M-5Y70 Broadwell CPU in November 2014."\\
Source: https://en.wikipedia.org/wiki/Transactional_Synchronization_Extensions#implementation

https://www.heise.de/newsticker/meldung/Intel-Bug-Vorerst-kein-Transactional-Memory-2292196.html

"Insbesondere bei Supercomputern und Datenbankservern kann die Funktion deutliche Geschwindigkeitssteigerungen bringen, denn TSX sorgt dafür, dass voneinander abhängige Threads Cores weniger oft auf gesperrte Speicherbereiche stoßen." \\
http://www.golem.de/news/transactional-memory-intel-schaltet-tsx-wegen-bug-bei-haswell-ab-1408-108545.html

I would like to use Xeon E3-1240 v5 or Xeon E3-1240**L** v5 (low power). Version v5 is not compatible with the chipset C222 of PowerEdge R220. The v5 needs dedictated Intel Xeon chipsets C232 or C236.

:!: **We are stuck to v3 and therefore the TSX bug!!!**  



===== Used Servers (refurbished?) =====

https://www.servershop24.de/

===== Apache Spark and Hadoop =====

http://www.computerwoche.de/a/apache-spark-versus-hadoop,3096930

http://www.infoworld.com/article/3014440/big-data/five-things-you-need-to-know-about-hadoop-v-apache-spark.html

https://www.xplenty.com/blog/2014/11/apache-spark-vs-hadoop-mapreduce/

==== Kevin Mader, 4Quant, ETHZ ====
  * Diss: http://e-collection.library.ethz.ch/view/eth:6915
  * https://www.youtube.com/watch?v=I6qmEcGNgDo&t=1484s
  * Products of 4Quant: http://4quant.com/#product
  * Presentation at ETHZ (Spark Summit 2014): \\ http://people.ee.ethz.ch/~maderk/spark-summit-2014-presentation/ssPresentation.html#/

==== Giachetta ====

  * http://rs.tudelft.nl/~rlindenbergh/workshop/GiachettaIQmulus.pdf