def test_applying_binary_function(self):
class MyOperator(PcbOperator):
def test_binop(self, x, y):
return x + y
ops = MyOperator([Operator("test_binop", comm=True, assoc=True)])
import kdt.pyCombBLAS as pcb
d = pcb.pyDenseParVec(10, -5)
s = pcb.pyDenseParVec(10, 5)
# this applies test_binop(x,y) for x,y in s,d
s.EWiseApply(d, ops.test_binop)
# test to see if the op worked
for x in xrange(10):
self.assertEqual(s[x], 0)
def bfsTreeEWise(G, root, sym=False): import kdt.pyCombBLAS as pcb if not sym: G.T() parents = pcb.pyDenseParVec(G.nvert(), -1) frontier = pcb.pySpParVec(G.nvert()) parents[root] = root frontier[root] = root def iterop(vals): #print "visiting ",vals[2] # vals[0] = frontier value # vals[1] = parents value # vals[2] = index if (vals[1] == -1): # discovered new vertex. Update parents and set frontier's value to its index vals[1] = vals[0] vals[0] = vals[2] else: # vertex already discovered. Remove it from the frontier vals[0] = None ops = 0; while frontier.getnee() > 0: G._spm.SpMV_SelMax_inplace(frontier) #opss = time.time() #pcb.EWise(iterop, [pcb.EWise_OnlyNZ(frontier), parents, pcb.EWise_Index()]) pcb.Graph500VectorOps(frontier, parents) #ops = ops + (time.time() - opss) #print "time: %fs"%(ops) if not sym: G.T() return kdt.ParVec.toParVec(parents)
