I am trying to use the TFileMerger to merge a large number of root files. The merger seems to make a local copy of each root file in /tmp. This eats up all the space and makes it impossible to merge all the files because the total space required exceeds the space available on the /tmp partition.
I was wondering if it is possible to turn off this local copy option and have root just use the original files I want to merge. If not, is there a way to change the temp directory which the merger uses?
thanks in advance,
Sipho van der Putten