Displaying 6 results from an estimated 6 matches for "dispatchwidth".
2019 Jun 07
2
[llvm-mca] What's the difference between Rthroughput and "total cycles" in llvm-mca
Hi Andrea,
So does this definition make sense for basic blocks with more than one
instructions? E.g. how should one interpret a basic block with RThroughput
of 2.3?
On Fri, Jun 7, 2019 at 7:39 AM Andrea Di Biagio <andrea.dibiagio at gmail.com>
wrote:
> Hi Tom,
>
> Field 'Total Cycles' from the summary view simply reports the elapsed
> number of cycles for the entire
2018 Mar 02
0
[RFC] llvm-mca: a static performance analysis tool
...oded instructions, and dispatched in groups to the hardware
> schedulers. The dispatch logic is implemented by class DispatchUnit in file
> Dispatch.h.
>
> The size of a dispatch group depends on the availability of hardware resources,
> and it cannot exceed the value of field 'DispatchWidth' in class DispatchUnit.
> Note that field DispatchWidth defaults to the value of field 'IssueWidth' from
> the scheduling model.
>
> Users can override the DispatchWidth value with flag "-dispatch=<N>" (where 'N'
> is an unsigned quantity).
>...
2018 Mar 01
9
[RFC] llvm-mca: a static performance analysis tool
...om a
queue
of already decoded instructions, and dispatched in groups to the hardware
schedulers. The dispatch logic is implemented by class DispatchUnit in file
Dispatch.h.
The size of a dispatch group depends on the availability of hardware
resources,
and it cannot exceed the value of field 'DispatchWidth' in class
DispatchUnit.
Note that field DispatchWidth defaults to the value of field 'IssueWidth'
from
the scheduling model.
Users can override the DispatchWidth value with flag "-dispatch=<N>" (where
'N'
is an unsigned quantity).
An instruction can be dispatch...
2018 Mar 02
0
[RFC] llvm-mca: a static performance analysis tool
...ctions, and dispatched in groups to the hardware
> schedulers. The dispatch logic is implemented by class DispatchUnit
> in file
> Dispatch.h.
>
> The size of a dispatch group depends on the availability of hardware
> resources,
> and it cannot exceed the value of field 'DispatchWidth' in class
> DispatchUnit.
> Note that field DispatchWidth defaults to the value of field
> 'IssueWidth' from
> the scheduling model.
>
> Users can override the DispatchWidth value with flag "-dispatch=<N>"
> (where 'N'
> is an unsigned...
2018 Mar 02
0
[RFC] llvm-mca: a static performance analysis tool
...ructions, and dispatched in groups to the hardware
> schedulers. The dispatch logic is implemented by class DispatchUnit in
> file
> Dispatch.h.
>
> The size of a dispatch group depends on the availability of hardware
> resources,
> and it cannot exceed the value of field 'DispatchWidth' in class
> DispatchUnit.
> Note that field DispatchWidth defaults to the value of field 'IssueWidth'
> from
> the scheduling model.
>
> Users can override the DispatchWidth value with flag "-dispatch=<N>"
> (where 'N'
> is an unsigned qua...
2018 Mar 02
5
[RFC] llvm-mca: a static performance analysis tool
...ructions, and dispatched in groups to the hardware
> schedulers. The dispatch logic is implemented by class DispatchUnit in
> file
> Dispatch.h.
>
> The size of a dispatch group depends on the availability of hardware
> resources,
> and it cannot exceed the value of field 'DispatchWidth' in class
> DispatchUnit.
> Note that field DispatchWidth defaults to the value of field 'IssueWidth'
> from
> the scheduling model.
>
> Users can override the DispatchWidth value with flag "-dispatch=<N>"
> (where 'N'
> is an unsigned qua...