Workflows

Workflow Pattern - Structured Loop (B) (2)

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This workflow is an alternative GWorkflowDL representation of a structured loop that updates the variable "x" in each iteration and which models the control flow separately from the index "i". Here a version of the graph with manual graph layout: This workflow is equivalent to the following pseudo code: x:=0; for ( i:=0; i<=99; i++) { x:=x+i; } x_result:=x; Please remark that this demonstration workflow does not invoke any external services at all. The c...

Created: 2008-12-09

Credits: Andreas Hoheisel

Attributions: Workflow Pattern - Structured Loop

Workflow Pattern - Structured Loop (2)

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This workflow is a GWorkflowDL representation of a structured loop that updates the variable "x" in each iteration. This workflow is equivalent to the following pseudo code: x:=0; for ( i:=0; i<=99; i++) { x:=x+i; } x_result:=x; Please remark that this demonstration workflow does not invoke any external services at all. The calculation is done only by using the GWorkflowDL's syntax and semantics.

Created: 2008-12-09

Credits: Andreas Hoheisel

Workflow Pattern - Structured Loop (C) (2)

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This workflow is a GWorkflowDL representation of a structured loop that counts from 0 to 99.   This workflow is equivalent to the following pseudo code: for ( i:=0; i Please remark that this demonstration workflow does not invoke any external services at all.

Created: 2008-12-09

Credits: Andreas Hoheisel

Attributions: Workflow Pattern - Structured Loop (B)

Workflow Pattern - Simple Merge (XOR-Join) (1)

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This workflow is a GWorkflowDL representation of a simple merge (XOR Join) that invokes C when either A or B has been invoked. The structure of the GWorkflowDL representation of a simple merge is identical to the multi merge pattern!

Created: 2008-12-03 | Last updated: 2009-01-19

Credits: Andreas Hoheisel

TextGrid: Test workflow (on ingrid) (1)

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Test workflow that invokes CRUD read on ingrid.

Created: 2008-12-17

Credits: Andreas Hoheisel

TextGrid: Test workflow (2)

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This is a first test workflow that demonstrate, how to use the GWES for a document-style Web Service within TextGrid.

Created: 2008-12-17

Credits: Andreas Hoheisel

Workflow Pattern - Multi Choice (OR Split) (2)

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This workflow is a GWorkflowDL representation of a multi choice (OR Split) that invokes either A or B or A and B.

Created: 2008-12-09

Credits: Andreas Hoheisel

Workflow Pattern - Exclusive Choice (XOR-S... (2)

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This workflow is a GWorkflowDL representation of an exclusive choice (XOR Split) that invokes either A or B. This workflow is equivalent to the following pseudo code: x = XOR_Split; if (x=="true") { end_A = A(x); } else { end_B = B(x); }

Created: 2008-12-09

Credits: Andreas Hoheisel

Workflow Pattern - Synchronization (AND-Join) (2)

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This workflow is a GWorkflowDL representation of a synchronization (AND Join) that waits until A and B finish their execution. This workflow is equivalent to the following pseudo code: threadA = new Thread( end_A = A() ); threadB = new Thread( end_B = B() ); threadA.join(); threadB.join();

Created: 2009-01-19

Credits: Andreas Hoheisel

GWorkflowDL: Generic execution of programs (1)

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This workflow is an example of the execution of an arbitrary command line program. This workflow transfers a tar.gz package containing the linux program "date" to a free Grid resource, unpacks, and executes it. After execution the URL to the file with the standard output is available on "stdout", the standard error on "stderr".

Created: 2008-11-25 | Last updated: 2008-11-25

Credits: Andreas Hoheisel