How to run parallel Loops in LabVIEW?

LabVIEW 2018 Help

1. Right-click the For Loop and select Configure Iteration Parallelism.
2. Place a checkmark in the Enable loop iteration parallelism checkbox.
3. Set the Number of generated parallel loop instances to the maximum number of logical processors you expect any computer running the VI to ever contain.

What is parallelism in LabVIEW?

In LabVIEW, task parallelism is achieved by having parallel portions of code on your block diagram. The advantage of LabVIEW is that you can “see” the parallelism in your code and easily separate unique tasks to achieve this form of parallelism.

HOW DO FOR loops work in LabVIEW?

A For Loop is a structure you use to execute a block of code a set number of times. When the VI runs, the iteration count is evaluated, and then the code is executed. A For Loop can be configured to conditionally stop code execution in addition to its iteration-based exit.

What are the different types of loops used in LabVIEW?

LabVIEW consists of FOR Loop and WHILE Loop. These loops are used to control repetitive operations. Structures on the block diagram are used to repeat blocks of code and to execute code conditionally or in a specific order.

How are parallel for loops executed in LabVIEW?

The LabVIEW compiler generates multiple independent loop instances to execute the iterations. The loop instances execute in parallel using LabVIEW’s multithreaded execution environment, just like parallel sections of code in a diagram. In LabVIEW 2009, each loop instance executes a statically predetermined subset of the iterations.

How does the stop button work in LabVIEW?

The stop button wired to the element parameter of the writer endpoint in Loop A communicates with Loop B. If you click the stop button in Loop A , Loop B also stops. The following block diagram demonstrates stopping parallel While Loops using a Stream channel:

Are there two while loops in parallel-ni community?

Right now, there is a while loop that includes one counter going high and low, sequentially, with the Start VI in the loop. If I add another loop in parallel, calling to the second counter at a different rate (different points in time), can it work? Or will the fact that they address the same DAQ device cause failure?

How to improve parallelism with parallel for loops?

LabVIEW automatically takes advantage of multicore machines by executing independent portions of diagrams in different threads. In LabVIEW 2009 and later, you can get even more parallelism from your diagrams by enabling iteration parallelism on For Loops.