Tochnog now with LAPACK band solver- Works with 64-bit systems
[email protected] Tue, 28 Sep 2010 08:25:36 -0500
| Newsgroups | gmane.comp.mathematics.tochnog.user |
|---|---|
| Message-ID | <[email protected]> |
--===============7397166459610433506== Content-Type: multipart/alternative; boundary=Apple-Mail-2-282974762 --Apple-Mail-2-282974762 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Dear Tochnogers, After continuing frustration over the inability of adjusting Superlu to = work in a 64-bit environment, I started looking for options and found = that both BLAS and LAPACK are included or are available for most modern = 64-bit systems. So I tried to incorporate the ability of using a fast = 64-bit library with Tochnog, and got it to work!!!! Atached are the standard Tochnog files with the modifications necesary = to use the LAPACK band solver dgbsv.=20 I have also included the OSX version of Tochnog which uses the = Accelerate Framework which contains BLAS and LAPACK.=20 IF YOU ARE BUILDING FOR OTHER SYSTEM, PLEASE MODIFY THE MAKEFILE AND = ADJUST IT TO INCLUDE THE LOCATION OF BLAS AND LAPACK FOR YOUR SYSTEM. I have tested and it is significantly faster than the biconjugate solver = which is the default solver. PLEASE REMEMBER ALSO THAT THE SOLUTIONS OF THE EXAMPLES IN THE MANUAL = AND WEBSITE WERE POSTED USING THE OLDER VERSION OF THE SOLVER. The Masin = version saves the solution in the element and not the nodes. To get the = same answers as shown in Tochnog's website, use=20 options_element_dof -no. The default option is -yes. Enjoy and provide us with your feedback Best regards, Fernando Lorenzo=20= Engineering Systems Inc. Providing Clear Answers Through Insights and Multidisciplinary Engineering Excellence CONFIDENTIALITY NOTICE: This email message (and any attachments to it) i= s intended only for the individual or entity to which it is addressed and= may contain confidential and/or privileged material. Any unauthorized r= eview, use, disclosure or distribution is prohibited. If you are not the= intended recipient, or the employee or agent responsible for delivering = it to the intended recipient, please contact the sender by reply e-mail a= nd destroy all copies of the original message. If you are the intended r= ecipient, but do not wish to receive communication through this medium, p= lease advise the sender immediately. =0D --Apple-Mail-2-282974762 Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=us-ascii <html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="font-family: arial, helvetica, clean, sans-serif; color: rgb(94, 94, 94); font-size: 13px; line-height: 16px; white-space: pre-wrap; ">Dear Tochnogers, After continuing frustration over the inability of adjusting Superlu to work in a 64-bit environment, I started looking for options and found that both BLAS and LAPACK are included or are available for most modern 64-bit systems. So I tried to incorporate the ability of using a fast 64-bit library with Tochnog, and got it to work!!!! Atached are the standard Tochnog files with the modifications necesary to use the LAPACK band solver dgbsv. I have also included the OSX version of Tochnog which uses the Accelerate Framework which contains BLAS and LAPACK. IF YOU ARE BUILDING FOR OTHER SYSTEM, PLEASE MODIFY THE MAKEFILE AND ADJUST IT TO INCLUDE THE LOCATION OF BLAS AND LAPACK FOR YOUR SYSTEM. I have tested and it is significantly faster than the biconjugate solver which is the default solver. PLEASE REMEMBER ALSO THAT THE SOLUTIONS OF THE EXAMPLES IN THE MANUAL AND WEBSITE WERE POSTED USING THE OLDER VERSION OF THE SOLVER. The Masin version saves the solution in the element and not the nodes. To get the same answers as shown in Tochnog's website, use options_element_dof -no. The default option is -yes. Enjoy and provide us with your feedback Best regards,</span><div><font class="Apple-style-span" color="#5E5E5E" face="arial, helvetica, clean, sans-serif" size="3"><span class="Apple-style-span" style="font-size: 13px; line-height: 16px; white-space: pre-wrap;"><br></span></font><div> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; ">Fernando Lorenzo </div></span></div></div></body></html> <pre>Engineering Systems Inc. Providing Clear Answers Through Insights and Multidisciplinary Engineering Excellence CONFIDENTIALITY NOTICE: This email message (and any attachments to it) is intended only for the individual or entity to which it is addressed and may contain confidential and/or privileged material. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, or the employee or agent responsible for delivering it to the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. If you are the intended recipient, but do not wish to receive communication through this medium, please advise the sender immediately. --Apple-Mail-2-282974762-- --===============7397166459610433506== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline ------------------------------------------------------------------------------ Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev --===============7397166459610433506== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Tochnog-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/tochnog-users --===============7397166459610433506==--