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incorrect usage of plasma_dlaswp() #1

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@ianwashington

In file ParSHUM_dense.c line 179, usage of plasma_dlaswp() is incorrect.

From PLASMA docs (or any other lapack version) the function signature for laswp is:
int PLASMA_dlaswp( int N, double *A, int LDA, int K1, int K2, const int *IPIV, int INCX);

A "possible" correct usage (in this context) may be:
plasma_dlaswp(BB_cols, &self->val[(self->n-BB_cols) * self->m], self->m, 1, self->m, self->pivots, 1);

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