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Improving IMSL accuracy

Ling_Meng-chieh
Beginner
‎09-11-2012 09:40 AM
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Dear all

   I want to increase the accuracy of calculation result from IMSL package from 14 digits to 28 digits to delay the influence of numerical instability. In the Visual Studio 2010, I can redeifne double precision from KIND = 8 to KIND = 16 by Property -> Fortran -> Data -> Default Double Precision Kind. However, when using this function in attempt to improve the accuracy, I got error message ERROR#6633:

Error 1 error #6633: The type of the actual argument differs from the type of the dummy argument. 

Is this inevitable or requiring more effort to make this function and IMSL working together.

Sincerely

Meng-Chieh Ling

 

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Steven_L_Intel1
Employee
‎09-12-2012 03:28 PM
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IMSL does not support REAL(16). You cannot get more than double precision from IMSL. You may want to see if there is some Fortran-source library, such as Netlib, which you can compile for REAL(16), though you will need to be careful to make sure you really get the results you want.
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