example/extensions/lib_custom_op/test_transposecsr.py

#!/usr/bin/env python3

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# coding: utf-8
# pylint: disable=arguments-differ

# This test checks dynamic loading of custom library into MXNet
# and checks end to end compute of a simple 2D gemm custom op

import mxnet as mx
import os

#load library
if (os.name=='posix'):
    path = os.path.abspath('libtransposecsr_lib.so')
    mx.library.load(path)
elif (os.name=='nt'):
    path = os.path.abspath('libtransposecsr_lib.dll')
    mx.library.load(path)

a = mx.nd.array([[1,3,0,2,1],[0,1,0,0,0],[0,2,4,5,3]])
a = a.tostype('csr')
print("--------Input CSR Array---------")
print("data:", a.data.asnumpy())
print("indices:", a.indices.asnumpy())
print("indptr:", a.indptr.asnumpy())

print("--------Start NDArray Compute---------")
b = mx.nd.my_transposecsr(a)
print("Compute Results:")
print("data:", b.data.asnumpy())
print("indices:", b.indices.asnumpy())
print("indptr:", b.indptr.asnumpy())

print("Stateful Compute Result:")
c = mx.nd.my_state_transposecsr(a, test_kw=100)
print("data:", c.data.asnumpy())
print("indices:", c.indices.asnumpy())
print("indptr:", c.indptr.asnumpy())

print("--------start Gluon compute--------")
d = mx.sym.Variable('d')
e = mx.sym.my_transposecsr(d)
f = mx.sym.my_state_transposecsr(d, test_kw=200)

block = mx.gluon.nn.SymbolBlock(e, [d])
out = block(a)
print("Compute Results:")
print("data:", out.data.asnumpy())
print("indices:", out.indices.asnumpy())
print("indptr:", out.indptr.asnumpy())

block2 = mx.gluon.nn.SymbolBlock(f,[d])
out2 = block2(a)
out2 = block2(a)
print("Stateful Compute Result:")
print("data:", out2.data.asnumpy())
print("indices:", out2.indices.asnumpy())
print("indptr:", out2.indptr.asnumpy())

print("--------Baseline(dense)--------")
print(mx.nd.transpose(a.tostype('default')))