Is there a way to express a multiple pipeline itinerary using the current scheme (maybe some trick with setting NextCycles = 0)? Specifically, consider a case where a floating-point load simultaneously uses units from a floating-point pipeline and a load/store pipeline. Thanks in advance, Hal -- Hal Finkel Postdoctoral Appointee Leadership Computing Facility Argonne National Laboratory
On Thu, 2011-10-06 at 14:14 -0500, Hal Finkel wrote:> Is there a way to express a multiple pipeline itinerary using the > current scheme (maybe some trick with setting NextCycles = 0)? > Specifically, consider a case where a floating-point load simultaneously > uses units from a floating-point pipeline and a load/store pipeline.To be clear, in my parenthetical above, I mean setting TimeInc (which says, "cycles till start of next stage") = 0. -Hal> > Thanks in advance, > Hal >-- Hal Finkel Postdoctoral Appointee Leadership Computing Facility Argonne National Laboratory 1-630-252-0023 hfinkel at anl.gov
Hello Hal.> Is there a way to express a multiple pipeline itinerary using the > current schemeYes, surely> (maybe some trick with setting NextCycles = 0)?Yep!> Specifically, consider a case where a floating-point load simultaneously > uses units from a floating-point pipeline and a load/store pipeline.Look into ARM itineraries, they contain a decent amount of such examples. -- With best regards, Anton Korobeynikov Faculty of Mathematics and Mechanics, Saint Petersburg State University
Anton, Thanks! What is the difference between Reserved and Required? -Hal On Fri, 2011-10-07 at 00:11 +0400, Anton Korobeynikov wrote:> Hello Hal. > > > Is there a way to express a multiple pipeline itinerary using the > > current scheme > Yes, surely > > > (maybe some trick with setting NextCycles = 0)? > Yep! > > > Specifically, consider a case where a floating-point load simultaneously > > uses units from a floating-point pipeline and a load/store pipeline. > Look into ARM itineraries, they contain a decent amount of such examples.-- Hal Finkel Postdoctoral Appointee Leadership Computing Facility Argonne National Laboratory 1-630-252-0023 hfinkel at anl.gov