![]() The separate allocation can be disabled by setting this variable to 0x7fffffffffffffff. The minimal size of these blocks can be controlled by setting the environment variable XPRESS_HEAP_THRESHOLD, which specifies the size of those blocks in bytes. By default, blocks larger than 16 KB are allocated on that separate heap. Larger memory blocks are now allocated on a separate heap. On Windows the memory allocation strategy was changed to reduce the overhead in heavily multi-threaded solves.There is a new symbolic link libxprs.so.xx for the shared library.Changes in the ABI that are not backward compatible are indicated by a change in this major version number. On Unix operating systems, the DT_SONAME field of the shared library changed from libxprs.so.xx.yy to libxprs.so.xx, i.e., only the major version number is now in the internal library name.It depends on the value of IGNORECONTAINERCPULIMIT. The CORESDETECTED attribute now also reflects container-imposed limits if Xpress runs in a container.As opposed to TREERESTARTS, this attribute not only counts the number of times the B&B tree is reset to the root node, but also includes the number of times presolve is repeated at the root node. New attribute RESTARTS that returns the number of restarts performed.control CPIALPHA allows setting the exponential decay for the confined primal integral (default: 1, no decay).attribute CPISCALEFACTOR represents the scaling factor used for the computation of the primal integral.the incumbent solution of the current run attribute OBSERVEDPRIMALINTEGRAL gives the primal integral w.r.t.This comes with two new attributes and one new control: The confined primal integral can now be set as a tuner target (TUNERTARGET=10).Primal simplex used much less in concurrent solve of the initial LP relaxation.Improved sparse matrix-vector multiplication selection method in dual crossover. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |