FYI, http://en.wikipedia.org/wiki/Jacobi_eigenvalue_algorithm
Iteration is very slow to converge, also related with dimensions. On Mon, Mar 15, 2010 at 3:08 PM, Edward J. Yoon <[email protected]> wrote: > Hi, > >> Currently what I am doing is generating a 10*10 random matrix and I give 3 >> as the > > Jacobi Eigenvalue Algorithm is only works for symmetric matrix. > >> number of loops. I dont understand why but my output looks very much like my >> input. If I increase the number of loops what should I increase it to ?Is >> there >> any co relation between size of the matrix and the number of loops > > See the 814 line code of DenseMatrix "while (state != 0 && icount < imax)" > > The integer state counts the number of components of changed which > have the value true. Iteration stops as soon as state = 0. > > The integer imax counts is just a optional. In TestJacobiEigenValue > class, imax is '100', but will be stoped when state = 0 (49 > iterations). > > On Sun, Mar 14, 2010 at 1:06 PM, <[email protected]> wrote: >> Hello All, >> I solved the previous problem. Now my program is able to get the >> eigen >> values, but I want to know what is a good value to give for the number of >> loops. >> Currently what I am doing is generating a 10*10 random matrix and I give 3 >> as the >> number of loops. I dont understand why but my output looks very much like my >> input. If I increase the number of loops what should I increase it to ?Is >> there >> any co relation between size of the matrix and the number of loops >> >> Best Regards from Buffalo >> >> Abhishek Agrawal >> >> SUNY- Buffalo >> (716-435-7122) >> >> On Sat 03/13/10 12:33 AM , [email protected] sent: >>> Hi, >>> I was looking through the Eigenvalue procedure in DenseMatrix.java and I >>> seethe values of the calculated eigen values are stored in a table. I was >>> wonderinghow ca I access the values of this table from my application. >>> According to >>> myunderstanding the name of the table is not given at run time >>> >>> Best Regards from Buffalo >>> >>> Abhishek Agrawal >>> >>> SUNY- Buffalo >>> (716-435-7122) >>> >>> On Fri 03/12/10 11:21 PM , aa...@buffa >>> lo.edu sent:> Hi, >>> > I am a relatively new user of Hama. I ran the >>> command "bin/hama> examples "and this is the output I am >>> getting > >>> > had...@zeus:~ >>> > /HAMA$ bin/hama examplesRunJar jarFile >>> [mainClass] args...> had...@zeus:~ >>> > /HAMA$ >>> > From the wiki I see that this is not what I >>> should be getting. What is the> reasonfor this ? >>> > >>> > Best Regards from Buffalo >>> > >>> > Abhishek Agrawal >>> > >>> > SUNY- Buffalo >>> > (716-435-7122) >>> > >>> > >>> > >>> > >>> > >>> >>> >>> >>> >>> >> >> > > > > -- > Best Regards, Edward J. Yoon @ NHN, corp. > [email protected] > http://blog.udanax.org > -- Best Regards, Edward J. Yoon @ NHN, corp. [email protected] http://blog.udanax.org
