{"id":128,"date":"2017-03-23T15:16:21","date_gmt":"2017-03-23T15:16:21","guid":{"rendered":"http:\/\/buildsoftsupport.com\/?post_type=ht_kb&#038;p=128"},"modified":"2025-09-29T07:28:19","modified_gmt":"2025-09-29T07:28:19","slug":"error-error-while-solving-sparse-matrix-sub-1-at-declarations4-math-linalg-matrixsparse-solvevector-f","status":"publish","type":"ht_kb","link":"https:\/\/support.buildsoft.eu\/nl\/knowledge-base\/error-error-while-solving-sparse-matrix-sub-1-at-declarations4-math-linalg-matrixsparse-solvevector-f\/","title":{"rendered":"ERROR: Error while solving Sparse Matrix (sub 1) at Declarations4.Math.LinAlg.MatrixSparse.Solve(Vector f)"},"content":{"rendered":"\n<p>On launching the elastic analysis the error appears<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"472\" height=\"316\" src=\"http:\/\/buildsoftsupport.com\/wp-content\/uploads\/2017\/03\/ErrorSparseMatrixDeclarations.png\" alt=\"\" class=\"wp-image-4994\" srcset=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2017\/03\/ErrorSparseMatrixDeclarations.png 472w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2017\/03\/ErrorSparseMatrixDeclarations-300x201.png 300w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2017\/03\/ErrorSparseMatrixDeclarations-50x33.png 50w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2017\/03\/ErrorSparseMatrixDeclarations-60x40.png 60w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2017\/03\/ErrorSparseMatrixDeclarations-35x23.png 35w\" sizes=\"(max-width: 472px) 100vw, 472px\" \/><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\">Solution 1<\/h2>\n\n\n\n<ul>\n<li>Verify the geometry of the model. Usually you&#8217;ll find an inaccuracy in the point coordinates of the walls. Read <a href=\"http:\/\/buildsoftsupport.com\/knowledge-base\/how-does-the-projection-function-work\/\">this <\/a>article.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Solution 2<\/h2>\n\n\n\n<ul>\n<li>Try to define <a href=\"https:\/\/support.buildsoft.eu\/knowledge-base\/how-to-model-a-tension-bar-tie-rod\/\" target=\"_blank\" rel=\"noopener noreferrer\">the tie rods using a function<\/a> (instead of the default option) allowing some compression in them.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Solution 3 (does not occur often)<\/h2>\n\n\n\n<ul>\n<li>Computer has two processors. Read it <a href=\"https:\/\/support.buildsoft.eu\/knowledge-base\/error-failed-to-read-from-an-ipc-port-the-pipe-has-been-ended\/\" data-type=\"ht_kb\" data-id=\"7730\">here<\/a>.<br>Note: the number of processors is not the same as the number of cores!<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>On launching the elastic analysis the error appears Solution 1 Solution 2 Solution 3 (does not occur often)<\/p>\n","protected":false},"author":2,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":[],"ht-kb-category":[65],"ht-kb-tag":[],"_links":{"self":[{"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb\/128"}],"collection":[{"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb"}],"about":[{"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/types\/ht_kb"}],"author":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/comments?post=128"}],"version-history":[{"count":3,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb\/128\/revisions"}],"predecessor-version":[{"id":18328,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb\/128\/revisions\/18328"}],"wp:attachment":[{"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/media?parent=128"}],"wp:term":[{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb-category?post=128"},{"taxonomy":"ht_kb_tag","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/nl\/wp-json\/wp\/v2\/ht-kb-tag?post=128"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}