ifc80 Optimizations in Intel Itanium 2

[jjqq]

I hope to optimize my code, but I can not find any optimizations in ifc80 for Intel Itanium 2.

My host is 4-way Intel Itanium 2 1.3GHz, 3 MB L3 Cache . The interconnection network is based on Quadrics QsNet.

Thank you!

[TimP]

When the compiler installs, and you have run the ifortvars environment script, you can get a summary of the options from

info ifort

or

ifort -help

More details are in the files in the doc directory of the compiler installation.

Basically, it goes like:

-O1:

[TimP]

When the compiler installs, and you have run the ifortvars environment script, you can get a summary of the options from

info ifort

or

ifort -help

More details are in the files in the doc directory of the compiler installation.

Basically, it goes like:

-O1:

[TimP]

When the compiler installs, and you have run the ifortvars environment script, you can get a summary of the options from

info ifort

or

ifort -help

More details are in the files in the doc directory of the compiler installation.

Basically, it goes like:

-O1: space saving optimizations, no software pipelining

-O2: default optimizations, basic software pipelining, no prefetch

-O3: full optimization