If Grapher is performing slowly, there are a few suggestions you can follow to attempt to speed it up:
- Reboot the computer.
The computer may have enough free available memory to perform the desired operation(s), but if it is fragmented over several blocks, then Grapher can only use the largest block of memory available. If you believe you have enough RAM, reboot the computer to defragment the memory, close down as many running applications as possible, and then try the operation(s) again.
- Click File | Options and on the General page, set the Undo Levels to 0.
Grapher may be holding memory for the number of Undo levels you have set. If you have the number of Undo levels set to 15, then Grapher has to hold the necessary memory to be able to undo the previous 15 actions. If they are actions that take a lot of memory, then Grapher has to hold onto the same amount of memory it took to perform the actions so it can undo them. Restarting Grapher resets the Undo actions so Grapher can release the memory it was holding. Another option is to set the number of Undo levels to 0 or some other smaller number, so Grapher can release some more memory.
- Try the 64-bit version of Surfer on a 64-bit operating system.
The 64-bit version allows for more memory to be available for Grapher.
Updated May 20, 2019