ALS algorithm failed to solve a system of normal equations

[xwu99]

Describe the bug oneDAL distributed ALS output:

terminate called after throwing an instance of 'daal::services::interface1::Exception' what(): ALS algorithm failed to solve a system of normal equations

To Reproduce

Ratings DataSet:

8,9,1.4411745 9,1,1.092935 9,2,-0.91744214 9,3,2.2006998 9,9,0.21981817 10,1,1.0850104 11,5,1.3231134 11,6,1.7639855 11,7,0.11663926 12,3,2.00351 12,4,0.6138814 13,3,-1.2167481 13,6,0.18907101 13,8,1.4609658 14,2,0.14865299 14,5,0.40862167 14,6,0.6963652 14,7,-0.23756275 15,6,1.5642234 15,7,0.66677445 15,9,1.000214 16,0,1.6124529 16,2,-1.6973028 16,8,2.1447284 16,9,0.05045301 18,4,0.33858204 18,5,0.18965948 18,8,0.33005014 19,6,0.9575896 0,2,0.26225922 0,6,0.79922354 0,7,0.49164158 1,0,0.5854655 1,6,-0.035676636 1,8,0.5337034 2,7,0.42522684 3,2,0.13153574 3,4,0.2896202 3,5,1.5807452 3,9,1.4361646 4,0,0.26508853 4,6,0.01327089 4,7,0.9329253 4,9,1.8566762 5,0,0.7780668 5,5,0.08633061 5,6,0.08109148 6,1,2.1982207 6,3,2.8123326 6,5,0.8729558 6,6,1.1040335 6,7,0.413112 6,8,0.6773266 7,0,0.7310588 7,1,-2.8301759 7,3,1.1037079 8,5,-0.7674738 8,7,0.4774422

numUsers = 20, numItems = 10 maxIter = 10, rank = 5, regParam = 0.01, implicitPrefs = true

Expected behavior Return result matrices successfully

[Alexsandruss]

Fixed by https://github.com/oneapi-src/oneDAL/commit/c6c5219c85e5bceb0392e54e653e00e8cc45e21f commit / https://github.com/oneapi-src/oneDAL/pull/1533 PR.

[Alexsandruss]

@xwu99, did https://github.com/oneapi-src/oneDAL/commit/c6c5219c85e5bceb0392e54e653e00e8cc45e21f fix your case?

[xwu99]

@xwu99, did c6c5219 fix your case?

Thanks for the fix. I am working on another algorithm. I will validate ALS and let you know.

[napetrov]

@xwu99 - was you able to check this?

[xwu99]

closed the issue.