CRJ200 Captain reported a low speed rejected take-off due to an EFIS COMP MON caution message. Tower advised the Left Engine was smoking which prompted a passenger evacuation which was completed safely.

Narrative

During the take-off roll and prior to 80 kts. we received an COMP MON Caution Message. The Captain initiated a low speed abort. As we turned off the runway the strong odor of fumes became present in the cockpit. Shortly thereafter ZZZ Tower informed us of smoke coming from the aircraft. Once we were straight on the taxiway Tower advised the smoke was from the Left Engine. The aircraft was taxied onto the ramp a safe distance from the terminal and brought to a stop. At this time the crew initiated the passenger evacuation checklist. Once complete; I exited the aircraft and began directing foot traffic and assisted passenger egress. Once all passengers were off; I returned up the stairs to check all passengers clear of the aircraft. Fire trucks were stationed close by and there was no further indication of fire/smoke. It was decided to move the aircraft to a suitable location for further inspection and this was accomplished without any issues. I did note during the start sequence the starter did not engage on 2 attempts on the left engine. The engine started normally on the third attempt with all indications being normal.