Notes: ———

1. The folder that is named “code” contains 3 subfolders. a) otf2tracegenerator contains the source code of the program that is used to convert the text-based traces generated by the running instances of the simgrid simulator. b) simgrid-simulator contains the source code of the simgrid simulator used for ALS c) two-levels_simulator contains the source code of the two-level simulator used for simulating BLS and ALS The two-level simulator expects that otf2converter and the simgrid-simulator are already compiled and their binaries (executables) are ready to be used.

2. The folder that is named “data-set” contains some batch workloads that have been used as samples to run the two-level simulator.

samples are taken from http://www.cs.huji.ac.il/labs/parallel/workload/ with some adaptation. please cite “Experience with using the Parallel Workloads Archive” (J. Parallel & Distributed Comput. 74(10) pp. 2967-2982, Oct 2014) please cite “Exploring the Relation Between Two Levels of Scheduling Using a Novel Simulation Approach”, In Proceedings of the 16th International Symposium on Parallel and Distributed Computing (ISPDC 2017), July 2017.

3. The folder that is named “libs” contains jar files that are needed to build the two-level simulator

4. The file name “configuration.properties” is inherited from the Alea simulator. It basically holds the configuration parameters to run the two-level simulator in addition to the necessary parameters required by the Alea simulator

List of important configurations: ————————————————

• dls_switch

should be always false.

• multilevel_swicth

should be always true.

• expid

one can give any integer as id for the current experiment

• parallelfactor

	  is a value larger than zero and less than one . To understand this factor please read “Exploring the Relation Between Two Levels of Scheduling Using a Novel Simulation Approach”, In Proceedings of the 16th International Symposium on Parallel and Distributed Computing (ISPDC 2017), July 2017”.

• alsMethod

	 is the ALS method used in all jobs #1:Self Scheduling| 2:STATIC |3:Guided self scheduling |4:Factoring

• resultDirector

string represents the path to store the results

• simGridWorkingFolder

string represents the path where the binary (executable) of the simgrid simulator exists

• simGridExecutableName

string represents the name of the executable of the simgrid simulator

• otf2ConverterDirectory

string represents the path where the binary (executable) of the otf2 converter exists

• otf2ConverterName

string represents the name of the executable of the otf2 converter

• gridSimSockettoAcceptConnections

integer represent the socket used for the communication between the BLS and ALS simulator instances

• processor_speed

long that is used to convert the execution time of jobs in the batch worklaod into FLOP to be used as task length

• algorithm

integer represents the BLS algorithm ( FCFS = 0, EDF = 1, SJF = 6)