Re: gfortran, g95, and dual-core

Charles Russell wrote:

The gnu make info file in my Cygwin distribution says that option -j is
ineffective with MS-DOS. Does it do anything under Cygwin? What factor
is a "big jump?"
gnu make on Windows is not known for speed. In my experience Cygwin
make -j 2, if not overdone, brings most of the relative speed increase
seen on linux. I didn't to suggest make -j without supplying a numeric
limit.

Not sure what you have in mind when you say "anything."

Now it is the desktop's turn, but my
4.5-year-old desktop has a clock speed of 2.4 GHz, and even the top
range Intel chips are hardly any faster now. Instead, they have gone to
dual-core. Perhaps the market is all in laptops, so that high-speed
high-power chips are out of fashion.
Increasingly high power consumption, other than in desktop graphics
boards, has gone out of fashion. My 5 year old P4 desktop board is
3.05Ghz, yet a 1.5 year old Core 2 board, stuck into another old P4 box,
out-performs it by about a factor of 4, including the gain from changing
from HT to dual core and from 32- to 64-bit OS.
.