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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