[Developers] Problems with make -j
diener at cct.lsu.edu
Mon May 21 11:48:24 CDT 2007
On Sun, 20 May 2007, Erik Schnetter wrote:
> Sometimes when I build a Cactus configuration with "make -j4", the "-j4"
> option is ignored, and make builds sequentially. I think this occurs mostly
> when the CST stage needs to run.
> Has anybody observed this as well? Do you know what the cause could be?
I have seen this as well. And I agree with the observation that it happens
when the CST is run.
> Maybe related is the fact that, when configuring, Cactus picks up the options
> "-fds 3,4", which are used by make to communicate between sub-makes to ensure
> that no more than 4 processes are running at the same time. Could this maybe
> confuse make?
I have no idea...
More information about the Developers