Name | Stalled Pipeline (HLS default) | Free running Pipeline | Traditional flushable pipeline |
---|---|---|---|
Pragma/Directive |
#HLS pragma pipeline style=stp set_directive_pipeline -style stp |
#HLS pragma pipeline style=frp set_directive_pipeline -style frp |
#HLS pragma pipeline style=flp set_directive_pipeline -style flp Deprecated: #HLS pragma pipeline enable_flush |
Global default | config_compile -pipeline_style stp (default) |
config_compile -pipeline_style frp config_compile -frp_max_fanout $value (default is 2000) |
N/A |
Description | Stalling architecture: runs only when input data is available otherwise stalls | Flushable frequency-optimized architecture: runs even when input data is not available | Traditional flushable architecture. |
Advantages |
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Flushable |
Disadvantages |
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Use Cases |
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When flushable is required for better performance or avoiding deadlock |