Add an empty core_ztile to measure overhead

Add an option to use empty coreblas in order to check the DAG without performing any computations.

assigned to @faverge

approved this merge request

enabled an automatic merge when the pipeline for aadaed6c succeeds

added 1 commit

• e85e996a - Add empty core_ztile to measure overhead

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enabled an automatic merge when the pipeline for e85e996a succeeds

merged

mentioned in commit 3decf2b0