Re: [Mplapack-devel] Adjusting qd_real?
Status: Pre-Alpha
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nakatamaho
From: Tony S. <sco...@ya...> - 2014-11-23 04:57:14
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Helo Nakata Maho I did subscribe as tc...@gm... but unfortunately because of a filter in mainland China,I cannot readily access it. I put in place a forward of my gmail account to my yahoo account.I will re-subscribe under my yahoo account. But please tell me bow to build and use mpack so that I can use double-double eigenvaluesolvers. best wishes Tony From: Nakata Maho <mah...@gm...> To: sco...@ya... Cc: mpl...@li... Sent: Saturday, November 22, 2014 5:59 PM Subject: Re: Adjusting qd_real? Hi sorry, your e-mail has been deferred as @yahoo.com... you should subscribe the list. anyway, > I see previous messages claiming that double-double works but I would like to know how. > Does the build require CUDA? no. internally it uses double-double library developed by Hida et al. I have just back from US so bit tired. I'll reply in the next week. thanks Nakata Maho From: Tony Scott <sco...@ya...> Subject: Adjusting qd_real? Date: Fri, 21 Nov 2014 06:41:34 +0000 (UTC) > Hello again > Still no documentation but by attrition, I figured out some of my previous problems. > I needed to switch on the FORTRAN wrapper for IFORT and through a GMP test case work out the link to the libraries. > I also managed to get the examples in dd and gmp working. I got D. Bailey's qd packageand enabled qd in mpack only to find that > -> mblas.h in the 'include' sub-directory has qd_real = REAL i.e. single precision which is NOT quad i.e. double-double precision > If I change it to e.g. qd_real to e.g. LONG DOUBLE or ____FLOAT128, I canconfigure but the make creates an error on the first BLAS routine it tries to compile. > I see previous messages claiming that double-double works but I would like to know how. > Does the build require CUDA? > Can someone tells me how to make build the libraries so that I can get double-doubleprecision for MBLAS and MLAPACK? > email is: 279...@qq... > best wishes and thanks in advance > (some documentation would also be nice:-) ) > |