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spec: The default value of 0 indicates that the manager does not have a preferred interface or does not have sufficient topology information for specifying one . Some of the first skyscrapers in Pittsburgh : the old bank buildings on Fourth Avenue , Pittsburgh 's former financial district . HSL has particular strengths in sparse matrix computations and large-scale optimization . Most people have only water , tea or occasionally coffee at their houses . The Ottoman sultans retained many of the customs of their ancestors , in particular a liking for tents - `` nomadic houses '' , whose prototypes were the felt yurts of Central Asia . Pittsburgh is a city of beautiful contrasts , most notably between the old and the new . The School of Engineering , at the University of Pittsburgh , leverages education and research to further engineers and engineering . The Pittsburgh Automobile Trade Association ( PATA ) is a metro trade association representing over 330 franchised automobile and truck dealers and related industries in Allegheny , Armstrong , Beaver , Butler , Fayette , Washington , Westmoreland and other surrounding counties in Western Pennsylvania . Initiated and pioneered many of the Work-Life Programs which have become common place in many companies today : child care and elder care resources and referrals ; adoption assistance ; flexible working arrangements ; leaves of absence ; personal choice holidays ; flexible vacation scheduling ; problem assessment , counseling and referral program ; providing employees information on resources in their community on child and elder care programs . It is read by University of Pittsburgh students and faculty .