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Algorithm.py
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import itertools
import Partitioning
class Algorithm( object ):
def __init__( self, linv, variant, init, repart, contwith, before, after, updates ):
self.linv = linv
self.variant = variant
if init:
#assert( len(init) == 1 )
self.init = init[0]
else:
self.init = None
self.repart = repart
self.contwith = contwith
self.before = before
self.after = after
self.updates = updates
# To be filled up for code generation
self.name = None
self.partition = None
self.partition_size = None
self.guard = None
self.repartition = None
self.repartition_size = None
self.basic_repart = None
self.cont_with = None
def prepare_for_code_generation( self ):
self.set_name()
self.set_partition()
self.set_partition_size()
self.set_guard()
self.set_repartition()
self.set_repartition_size()
self.set_basic_repart()
self.set_cont_with()
def set_name( self ):
self.name = "%s_blk_var%d" % (self.linv.operation.name, self.variant)
def set_partition( self ):
self.partition = dict()
traversals = self.linv.traversals[0][0]
#for op in self.linv.operation.operands: # [FIX] linv_operands?
for op in self.linv.linv_operands: # [FIX] linv_operands?
#part_size = self.linv.pme.part_shape[ op.get_name() ]
part_size = self.linv.linv_operands_part_shape[ op.get_name() ]
#part_flat = list(itertools.chain( *self.linv.pme.partitionings[ op.get_name() ] ))
part_flat = list(itertools.chain( *self.linv.linv_operands_basic_part[ op.get_name() ] ))
trav = traversals[op.get_name()]
if part_size == (1, 1):
continue
elif part_size == (1, 2):
if trav == (0, 1):
part_quad = "L"
else: # (0, -1)
part_quad = "R"
elif part_size == (2, 1):
if trav == (1, 0):
part_quad = "T"
else: # (-1, 0)
part_quad = "B"
elif part_size == (2, 2):
if trav == (1, 1):
part_quad = "TL"
elif trav == (1, -1):
part_quad = "TR"
elif trav == (-1, 1):
part_quad = "BL"
else: #(-1, -1):
part_quad = "BR"
else:
raise Exception
self.partition[ op.get_name() ] = (part_size, part_flat, part_quad)
def set_partition_size( self ):
self.partition_size = dict()
traversals = self.linv.traversals[0][0]
#for op in self.linv.operation.operands:
for op in self.linv.linv_operands:
name = op.get_name()
traversal = traversals[op.get_name()]
if traversal == (0, 0):
continue
elif traversal in ( (0, 1), (0, -1) ): # L|R (the specific quadrant can be retrieved from self.partition)
self.partition_size[ name ] = ( op.size[0], 0 )
elif traversal in ( (1, 0), (-1, 0) ): # T/B
self.partition_size[ name ] = ( 0, op.size[1] )
elif traversal in ( (1, 1), (1, -1), (-1, 1), (-1, -1) ): # 2x2
self.partition_size[ name ] = ( 0, 0 )
else:
print( name, traversal )
raise Exception
def set_guard( self ):
self.guard = []
traversals = self.linv.traversals[0][0]
#guard_dims = [bd[0] for bd in self.linv.linv_bound_dimensions[1:]]
guard_dims = []
#for bd in self.linv.linv_bound_dimensions[1:]:
for bd in self.linv.operation.bound_dimensions[1:]:
for d in bd:
op_name, dim = d.split("_")
op = [ o for o in self.linv.operation.operands if o.name == op_name ][0]
if op.st_info[1] != op:
continue
if dim == "r":
idx = 0
else:
idx = 1
if ( traversals[op_name][idx] == 0 ):
continue
self.guard.append( (op.get_size()[idx], guard(op, traversals[op_name])) )
break
def set_repartition( self ):
self.repartition = dict()
traversals = self.linv.traversals[0][0]
#for op in self.linv.operation.operands:
for op in self.linv.linv_operands:
part_size = self.linv.linv_operands_part_shape[ op.get_name() ]
#part_size = self.linv.pme.part_shape[ op.get_name() ]
repart = self.repart[ op.get_name() ]
traversal = traversals[op.get_name()]
if part_size == (1, 1):
continue
elif part_size == (1, 2):
repart_size = (1, 3)
if traversal == (0, 1): # ( 0 || 1 | 2 )
repart_quadrant = "R"
else: # ( 0 | 1 || 2 )
repart_quadrant = "L"
elif part_size == (2, 1):
repart_size = (3, 1)
if traversal == (1, 0): # ( 0 // 1 / 2 )
repart_quadrant = "B"
else: # ( 0 / 1 // 2 )
repart_quadrant = "T"
elif part_size == (2, 2):
repart_size = (3, 3)
if traversal == (1, 1): # BR becomes 2x2
repart_quadrant = "BR"
elif traversal == (1, -1): # BL becomes 2x2
repart_quadrant = "BL"
elif traversal == (-1, 1): # TR becomes 2x2
repart_quadrant = "TR"
else: #if traversal == (-1, -1): # TL becomes 2x2
repart_quadrant = "TL"
else:
raise Exception
repart_flat = list(flatten_repart(repart))
self.repartition[ op.get_name() ] = (repart_size, repart_flat, repart_quadrant)
def set_repartition_size( self ):
self.repartition_size = dict()
traversals = self.linv.traversals[0][0]
#for op in self.linv.operation.operands:
for op in self.linv.linv_operands:
name = op.get_name()
traversal = traversals[op.get_name()]
if traversal == (0, 0):
continue
elif traversal in ( (0, 1), (0, -1) ): # Quadrant is 1
self.repartition_size[ name ] = ( "1", op.size[0], "bs" )
elif traversal in ( (1, 0), (-1, 0) ): # Quadrant is 1
self.repartition_size[ name ] = ( "1", "bs", op.size[1] )
elif traversal in ( (1, 1), (1, -1), (-1, 1), (-1, -1) ): # Quadrant is 11
self.repartition_size[ name ] = ( "11", "bs", "bs" )
else:
print( name, traversal )
raise Exception
def set_basic_repart( self ):
self.basic_repart = dict()
traversals = self.linv.traversals[0][0]
for op in self.linv.linv_operands:
part_size = self.linv.linv_operands_part_shape[ op.get_name() ]
if part_size == (1, 1):
repart_size = (1, 1)
elif part_size == (1, 2):
repart_size = (1, 3)
elif part_size == (2, 1):
repart_size = (3, 1)
elif part_size == (2, 2):
repart_size = (3, 3)
else:
raise Exception
self.basic_repart[ op.get_name() ] = Partitioning.repartition_shape( op, repart_size )
def set_repartition_size( self ):
self.repartition_size = dict()
traversals = self.linv.traversals[0][0]
#for op in self.linv.operation.operands:
for op in self.linv.linv_operands:
name = op.get_name()
traversal = traversals[op.get_name()]
if traversal == (0, 0):
continue
def set_cont_with( self ):
self.cont_with = dict()
traversals = self.linv.traversals[0][0]
#for op in self.linv.operation.operands:
for op in self.linv.linv_operands:
part_size = self.linv.linv_operands_part_shape[ op.get_name() ]
#part_size = self.linv.pme.part_shape[ op.get_name() ]
traversal = traversals[op.get_name()]
if part_size == (1, 1):
continue
elif part_size == (1, 2):
if traversal == (0, 1): # ( 0 | 1 || 2 ) 1 appended to L
cont_with_quadrant = "L"
else: # ( 0 || 1 | 2 ) 1 appended to R
cont_with_quadrant = "R"
elif part_size == (2, 1):
if traversal == (1, 0): # ( 0 / 1 // 2 ) 1 appended to T
cont_with_quadrant = "T"
else: # ( 0 // 1 / 2 ) 1 appended to B
cont_with_quadrant = "B"
elif part_size == (2, 2):
if traversal == (1, 1): # TL grows
cont_with_quadrant = "TL"
elif traversal == (1, -1): # TR grows
cont_with_quadrant = "TR"
elif traversal == (-1, 1): # BL grows
cont_with_quadrant = "BL"
else: #if traversal == (-1, -1): # BR grows
cont_with_quadrant = "BR"
else:
raise Exception
self.cont_with[ op.get_name() ] = cont_with_quadrant
def guard( op, traversal ):
name = op.get_name()
#op = [ o for o in self.operations.operands if o.name == op_name ][0]
if traversal == (0, 1): # L -> R
return ("L", op)
elif traversal == (0, -1): # R -> L
return ("R", op)
elif traversal == (1, 0): # T -> B
return ("T", op)
elif traversal == (-1, 0): # B -> T
return ("B", op)
elif traversal == (1, 1): # TL -> BR
return ("TL", op)
elif traversal == (1, -1): # TR -> BL
return ("TR", op)
elif traversal == (-1, 1): # BL -> TR
return ("BL", op)
elif traversal == (-1, -1): # BR -> TL
return ("BR", op)
else:
print( op_name, traversal )
raise Exception
# Flattens a matrix of matrices resulting from a repartitioning
def flatten_repart( repart ):
r, c = 0, 0
chained = []
for row in repart:
for cell in row:
_r = r
_c = c
for _row in cell:
_c = c
for _cell in _row:
chained.append( (_r, _c, _cell) )
_c += 1
_r += 1
c += len( cell.children[0] )
r = len( cell.children )
c = 0
chained.sort()
for _, _, quadrant in chained:
yield quadrant