.TH "INSTALL/sroundup_lwork.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*- .ad l .nh .SH NAME INSTALL/sroundup_lwork.f .SH SYNOPSIS .br .PP .SS "Functions/Subroutines" .in +1c .ti -1c .RI "real function \fBsroundup_lwork\fP (lwork)" .br .RI "\fBSROUNDUP_LWORK\fP " .in -1c .SH "Function/Subroutine Documentation" .PP .SS "real function sroundup_lwork (integer lwork)" .PP \fBSROUNDUP_LWORK\fP .PP \fBPurpose:\fP .RS 4 .PP .nf SROUNDUP_LWORK deals with a subtle bug with returning LWORK as a Float\&. This routine guarantees it is rounded up instead of down by multiplying LWORK by 1+eps when it is necessary, where eps is the relative machine precision\&. E\&.g\&., float( 16777217 ) == 16777216 float( 16777217 ) * (1\&.+eps) == 16777218 \\return SROUNDUP_LWORK \\verbatim SROUNDUP_LWORK >= LWORK\&. SROUNDUP_LWORK is guaranteed to have zero decimal part\&. .fi .PP .RE .PP \fBParameters\fP .RS 4 \fILWORK\fP Workspace size\&. .RE .PP \fBAuthor\fP .RS 4 Weslley Pereira, University of Colorado Denver, USA .RE .PP \fBFurther Details:\fP .RS 4 .PP .nf This routine was inspired in the method `magma_zmake_lwork` from MAGMA\&. \\see https://bitbucket\&.org/icl/magma/src/master/control/magma_zauxiliary\&.cpp .fi .PP .RE .PP .PP Definition at line \fB58\fP of file \fBsroundup_lwork\&.f\fP\&. .SH "Author" .PP Generated automatically by Doxygen for LAPACK from the source code\&.