?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=https%3A%2F%2Fpure.iiasa.ac.at%2Fid%2Feprint%2F4542%2F&rft.title=HOPDM+Modular+Solver+for+LP+Problems+User's+Guide+to+version+2.12&rft.creator=Gondzio%2C+J.&rft.creator=Makowski%2C+M.&rft.description=The+paper+provides+a+description+of+HOPDM%2C+a+library+of+routines+for+solving+large+scale+linear+programming+problems+and+its+implementation+at+IIASA.+HOPDM+stands+for+Higher+Order+Primal+Dual+Method.+The+algorithm+implemented+in+HOPDM+is+a+new+variant+of+a+primal-dual+logarithmic+barrier+method+that+uses+multiple+correctors+of+centrality.+The+newest+version+of+the+library+--+HOPDM+2.12+--+is+a+robust+and+efficient+LP+code+that+compares+favorably+with+the+up+to+date+commercial+solvers.+%0D%0A%0D%0AThe+paper+contains+an+outline+of+the+algorithm+implemented+in+HOPDM+and+information+about+results+of+tests+done+with+large+LP+problems+developed+at+IIASA.+Finally%2C+the+paper+provides+with+details+of+the+implementation+of+HOPDM+and+its+use+at+IIASA%2C+as+well+as+with+information+about+availability+of+the+portable+version+of+the+HOPDM+library.&rft.publisher=WP-95-050&rft.date=1995-06&rft.type=Monograph&rft.type=NonPeerReviewed&rft.format=text&rft.language=en&rft.identifier=https%3A%2F%2Fpure.iiasa.ac.at%2Fid%2Feprint%2F4542%2F1%2FWP-95-050.pdf&rft.identifier=++Gondzio%2C+J.+%26+Makowski%2C+M.+%3Chttps%3A%2F%2Fpure.iiasa.ac.at%2Fview%2Fiiasa%2F193.html%3E+ORCID%3A+https%3A%2F%2Forcid.org%2F0000-0002-6107-0972+%3Chttps%3A%2F%2Forcid.org%2F0000-0002-6107-0972%3E++(1995).++HOPDM+Modular+Solver+for+LP+Problems+User's+Guide+to+version+2.12.+++IIASA+Working+Paper.+IIASA%2C+Laxenburg%2C+Austria%3A+WP-95-050+++++