id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
4569	Implement single precision for matlab result files	massimo ceraolo	Martin Sjölund	"According to a set of tests I made, the OM matlab output size with is between 2 and 8 times dymola's.

I checked the two binaries and found that:
1) as default Dymola saves numbers in single precision (while OM double precision)
2) Dymola does not save several copies of variables which are identical (for instance the current in the positive pin of a resistor and in the resistor itself), nor of variables that are the opposite of saved ones (for instance the current in the positive and negative pins of a resistor)

AFAIK currently there are no options in OM to select either 1 or 2.

I cannot evaluate the difficulty of implementing 2 in OM, since it depends on its inner data structure, but it seems to me that 1 should be very easy.

In case this is true, I recommend implementing at least  1: for plotting purposes single precision is by large sufficient in the vast majority of cases.

I will set this ticket's priority to high just thinking to point 1 (2 has a lower priority).
"	enhancement	closed	high	1.13.0	Run-time		fixed		Adeel Asghar