How to increase the number of processes in parallel with Powershell 3?

Question

I am trying to run 20 processes in parallel. I changed the session as below but no luck. I only get up to 5 concurrent processes per session.

$wo=New-PSWorkflowExecutionOption -MaxSessionsPerWorkflow 50 -MaxDisconnectedSessions 200 -MaxSessionsPerRemoteNode 50 -MaxActivityProcesses 50 Register-PSSessionConfiguration -Name ITWorkflows -SessionTypeOption $wo -Force Get-PSSessionConfiguration ITWorkflows | Format-List -Property * 

Is there a switch parameter to increase the number of processes?

This is what I run:

 Workflow MyWorkflow1 { Parallel { InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 2 and 2975416"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 2975417 and 5950831"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 5950832 and 8926246"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 8926247 and 11901661"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 11901662 and 14877076"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns"where OrderId between 14877077 and 17852491"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 17852492 and 20827906"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 20827907 and 23803321"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 23803322 and 26778736"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 26778737 and 29754151"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 29754152 and 32729566"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 32729567 and 35704981"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 35704982 and 38680396"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 38680397 and 432472144"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 432472145 and 435447559"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 435447560 and 438422974"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 864944289 and 867919703"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 867919704 and 870895118"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 870895119 and 1291465602"} InlineScript { import-module \\PS_Scripts\bulkins.ps1; BulkIns "where OrderId between 1291465603 and 1717986945"} } 

Answer 1

I am not sure why you are calling PSSessionConfiguration.

If you look at the help output for the New-PsWorkFlowSession, you can see a few examples that look closer to what you want to do. I do not have the module that you use to verify this workflow, so I cannot offer much more help.

Answer 2

This should work, you don’t even need to change the PSSessionConfiguration setting. Here is an example, since we do not have your module.

 Workflow Get-ParallelChildItem { Parallel { InlineScript {gci C:\ -Recurse} InlineScript {gci C:\ -Recurse} } } 

Answer 3

jrv from the MSDN forums contains an example of working code :

 $wo = New-PSWorkflowExecutionOption -MaxSessionsPerWorkflow 100 -MaxDisconnectedSessions 200 Register-PSSessionConfiguration -Name test-ping -SessionTypeOption $wo -Force $s = New-PSWorkflowSession Invoke-Command $s { workflow Invoke-ParallelForEach{ foreach -parallel ($i in 1..10){ InlineScript{ "foo: $using:i" } Get-Process -Name PowerShell* } } } # now run the workflow with the custom configuration Invoke-Command $s { Invoke-ParallelForEach -PSComputerName localhost -PSConfigurationName test-ping}