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<p>Hi list,</p>
<p>I use Symphony under R (use RSymphony package).<br />Please tell me why sometimes RSymphony.dll crashes on Windows 7 (may be on other Windows too).<br /><br />I saw that it depends on input data. For example this code bring to crash:<br /><br />library('Rsymphony')<br />mat = c(0, 1, -100.37967, 0, 0, 1, 0, 0, -200, 0, 0, 1, -0.4, 0, 0, 1, 0, 0, -0.4, 0, 0.5, 0, 0, 0, 0, 0, -1, 0, 0, 0)<br />mat = matrix(mat, nrow=6, byrow=TRUE)<br />mat<br /><br />dir = c("<=", "<=", ">=", ">=", "==", "==")<br />rhs = rep(0, 6)<br />obj = c(1, 1, 1, 1, 1)<br />types = c("C", "C", "B", "B", "B")<br />bounds = NULL<br /><br />solution<-Rsymphony_solve_LP(obj,mat,dir,rhs, bounds=bounds, types=types, max = TRUE)<br />solution<br /><br /><br />Sometimes crashes not RSymphony.dll module but ntdll.dll - don't know how exactly repeat this crash.<br /><br /><br />Best, Vladyslav</p>