Options for using hardware implementation of remainder and square root on i32

[Kwok, Yipkei]

Hi,

Although the Intel x86 processors are capable of computing remainder and 
square root operations in hardware, both g++ and icpc (Intel compiler) 
realize these operations in software [1].

Question 1: Is there any specific result why they do it this way (using 
software implementation instead of hardware)?

Question 2: Is there any compiler option that force these operations to 
be done in hardware?

I need these answers in order compare differences, if there is any, in 
terms of performance and results.

Looking forward to hearing from anyone. Thank you very much!

Regards,
Yipkei

References:
[1] Frommer, A.; Husken, M., "Ensuring Numerical Quality in Grid 
Computing," Scientific Computing, Computer Arithmetic and Validated 
Numerics, 2006. SCAN 2006. 12th GAMM - IMACS International Symposium on 
, vol., no., pp.20-20, 26-29 Sept. 2006


g++ (the GNU compiler) or
icpc (the Intel compiler) on a Linux i386 platform, square
root and remainder are realized in software.

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Yipkei Kwok
Ph.D. Student
Research Assistant
HiPerSys Lab
Department of Computer Science
The University of Texas at El Paso
Phone: 915 747 6433 (O)
E-mail: ykwok2 at miners dot utep dot edu
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