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Re: Floating Point comparison G5 vs. Opteron (64-bit) question


Thanks Ian,

I look through the additional information. That helps a lot.

How exactly is your data stored? You are in F77? Is this a row in a 1D array or a row in a 2D array that you are copying into?

Regarding the data storage. I'm new to Fortran, but the data is being copied to a 1D array. I know that for 2D arrays the data is stored in column major order. However, for a 1D array I would presume that the data is stored in a continuous block of memory. If I presumed wrong then that would also be something to look into changing. But I can't imagine that the data for 1D array would be scattered. The array is declared as:

REAL work(+15)

If anyone could clarify this, I'd appreciate it.

Thanks again!

Dave
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References: 
 >Floating Point comparison G5 vs. Opteron (64-bit) question (From: David Gohara <email@hidden>)
 >Re: Floating Point comparison G5 vs. Opteron (64-bit) question (From: Ian Ollmann <email@hidden>)
 >Re: Floating Point comparison G5 vs. Opteron (64-bit) question (From: David Gohara <email@hidden>)
 >Re: Floating Point comparison G5 vs. Opteron (64-bit) question (From: Ian Ollmann <email@hidden>)



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