Add option to immediately tile to prevent OOM

[BartG95]

I recently ran into the following:

...
Fused depth-maps 1537 (81.19%, 7m31s, ETA 1m)...
Fused depth-maps 1538 (81.25%, 7m31s, ETA 1m)...
Fused depth-maps 1539 (81.30%, 7m32s, ETA 1m)...Killed
[WARNING] OpenMVS ran out of memory, we're going to turn on tiling to see if we can process this.
...

I am wondering, would it be possible to enabling tiling beforehand? It would prevent wasting time at a process that would result in an OOM anyway.

[pierotofy]

Ideally the program would know ahead of time if there are enough resources to process it without tiling, or turn on tiling by default, except tiling makes the program slower, and there's no reliable way to predict if the process will run out of memory. We used to have a pc-tile flag that forced the program to use tiling and the user could select it time ago, we removed it to simplify the list of options, maybe it could be re-introduced if there's enough interest.

Have you discussed this feature request with the community? Please do so before you open a feature request here: https://webodm.org/community