Parallel processing downgrade
- To: mathgroup at smc.vnet.net
- Subject: [mg98824] Parallel processing downgrade
- From: mark mcclure <mcmcclur at unca.edu>
- Date: Mon, 20 Apr 2009 01:32:06 -0400 (EDT)
The change from Mathematica 7.0.0 to 7.0.1 seems to be a
downgrade in the area of parallel processing. Try
LaunchKernels[8] in both. Back in good old 7.0.0 you
get:
{KernelObject[1, "local"], KernelObject[2, "local"],
KernelObject[3, "local"], KernelObject[4, "local"],
KernelObject[5, "local"], KernelObject[6, "local"],
KernelObject[7, "local"], KernelObject[8, "local"]}
Eight kernels - cool!
In 7.0.1, you get
{KernelObject[1, "local"], KernelObject[2, "local"],
KernelObject[3, "local"], KernelObject[4, "local"],
$Failed, $Failed, $Failed, $Failed}
A little disappointing.
The results are independent of how many processors your
computer has.
Mark McClure