goal: split compiler llvm llvm – dresc bytecode staticdeployment time optimized architecture...
Post on 31-Mar-2015
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Goal: Split Compiler
LLVM LLVM – DRESCbytecode
static deployment time
optimized architecture description
compiler strategy
ML
annotations
C code ADRES executable
ADRES
• Two functional views/operation modes
• Features heterogeneous FUs, local RFs, direct connections between FUs
• Reconfigurable every cycle
• Tightly coupled to control processor
IMEC ADRES CGRA Coarse-Grained Reconfigurable Array
What does the DRESC scheduler do?
Scheduling Phases
1. Determining the clusters2. Recurrence Cluster Scheduling3. Non-recurrence Cluster Scheduling
1. Determining the clusters
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2. Recurrence Cluster Scheduling
I. Schedule incoming tree of cluster
II. Schedule recurrence cluster
2.I Schedule incoming tree of cluster
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2.II Schedule recurrence cluster
• All recurrence clusters are scheduled in a reverse manner
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3. Schedule Remaining Nodes
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4. Failure? Backtracking
5. A more complex example
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