On 14/12/2012 07:58, noomen mechri wrote: > Thanks for your reply! > yes, that's what I had to do ... rerun the whole calculation on M9 which > again took a few hours!! (I know ... not good at optimizing code) > But then what is the purpose of having .mx files to save the workspace > variables for future use ... if they can only be read by the version in > which they have been produced ... it is senseless ... > > > On Tue, Dec 11, 2012 at 9:03 PM, Bob Hanlon<email@example.com> wrote: > >> I've never used an .mx file; however, from the documentation: >> >> "MX files cannot be exchanged between different operating systems or >> versions of Mathematica." >> >> "Mathematica MX files can be created with DumpSave and read with Get." >> >> Did you save the source files from which you did a DumpSave? If so, >> move the source files to v9 and DumpSave new .mx files in v9. >> >> >> Bob Hanlon >> >> >> On Tue, Dec 11, 2012 at 2:24 AM, NBM<firstname.lastname@example.org> wrote: >>> Having written a lot of code on M8, I recently switched to M9 and tried >> to >>> run the code which starts by loading an .mx file written by M8, but M9 >> wouldn't read it saying that it was written on another machine. This is a >> major incompatibility issue between M8 and M9. Fortunately I kept my M8 >> installation, so for now, M9 is useless to me. >>> Please a solution. >>> >> > I hit the restriction with .mx files some time ago.
I really needed high speed, and I timed various alternatives. The best I found, was to write the data: