Re: Parallel processing downgrade
- To: mathgroup at smc.vnet.net
- Subject: [mg98841] Re: Parallel processing downgrade
- From: Raffy <raffy at mac.com>
- Date: Mon, 20 Apr 2009 05:40:43 -0400 (EDT)
- References: <gsh19a$qa$1@smc.vnet.net>
On Apr 19, 10:30 pm, mark mcclure <mcmcc... at unca.edu> wrote: > 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 I believe the default license only supports 4? kernels. Unless your using grid (and mathlm), then you could try launch the kernels, one at a time, in a loop. Do[LaunchKernels[1],{8}]