CAPE-OPEN

getSinglePhaseProperty can only calculate one composition condition. if there are lots of conditions to be calculated at the same time, for loop is not efficient.

is there some way to calculate a matrix composition?

Not in this version of CAPE-OPEN.

With a well written efficient material object the overhead need not to be too large though. I suppose you mean to call both CalcSinglePhaseProperty and GetSinglePhaeProperty?

But if you do GetSinglePhaseProperty 1000x without CalcSinglePhaseProperty you will be getting the same value over and over again.

Would be great to know more on the case at hand. It is not the first time the requirement for calculating a property at a number of condition sets has been formulated.