How to run multiple work groups in parallel using ND Range

Hi,

i think bellow article will helps you to understand. please go through it.

https://www.intel.com/content/www/us/en/developer/articles/technical/dive-into-data-parallel-c.html?wapkw=multiple%20work%20groups%20in%20parallel%20using%20ND%20Range

Work-items in the same work-group won't run in parallel, they will be pipelined. You will need to use the SIMD attribute to achieve work-item-level parallelism:

https://www.intel.com/content/www/us/en/docs/programmable/683846/22-4/specifying-number-of-simd-work-items.html

Multiple work-groups are also automatically pipelined one after the other inside the same compute unit, and the compiler will replicate local memory buffers inside your kernel to accommodate for this. If you want to have work-group-level parallelism, then you need to use the num_compute_units() attribute:

https://www.intel.com/content/www/us/en/docs/programmable/683846/22-4/specifying-number-of-compute-units.html

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