>> save -v7.3 backtesting/files/technical-obj > > I do not get an error but it takes about 4 hours to save the file and > its size is 1.5gb.
> I will have a look at reducing the size of the structure but does anyone > have any suggestions as to what is the best way to save the results like > this?
You didn't have to start a new thread; you could just have replied to the old thread that indeed you were using objects .
As you are using objects, then you need to discuss with the administrators of the HPC site how to save the file on a drive that is local to the CPU you are using rather than being on a networked file system.
There has been no information from Mathworks posted on this forum as to _why_ the -v7.3 format can be as slow as it is, but there have been enough reports from users that we know that this is a fact of life for some kinds of data on some systems, at least up to 2010a. (People haven't happened to discuss it for 2010b.)