i found that indigo in multi gpu mode (two or more cards) works slower than with single card in open cl mode. i test it on multi gtx 1060 6gb rig (up to 4 cards) with pentium g4400 processor. any test scene with single gtx card renders faster than with two or more cards: single card has 99% gpu utilisation (with flat line of gpu utilisation graph located near 100% graph point), but each of two cards has around 33% of gpu utilisation with graphs looks like sharp peaks from 0% graph point to 50%.
configuration: asus z270-p / pentium g4400 / 4x gtx 1060 6gb/ 24gb ram / newest nvidia drivers.
Feature requests, bug reports and related discussion
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