Finishing up freq meas

controller/fw/ldpc_decoder_test.py

@@ -1,72 +0,0 @@
-
-import pyldpc
-import scipy.sparse
-import numpy as np
-import test_decoder
-import os, sys
-import ctypes as C
-import argparse
-
-if __name__ != '__main__':
-    raise RuntimeError("Please don't import this module, this is a command-line program.")
-
-parser = argparse.ArgumentParser()
-parser.add_argument('-r', '--reference', action='store_true', default=False, help='Run reference decoder instead of C implemention')
-args = parser.parse_args()
-
-lib = C.CDLL('./ldpc_decoder_test.so')
-
-n = 5*19
-nodes, bits = 17, 19
-H, G = pyldpc.make_ldpc(n, nodes, bits, systematic=False, seed=0)
-_1, bits_pos, _2 = scipy.sparse.find(H)
-_, k = G.shape
-
-st = np.random.RandomState(seed=0)
-test_data = st.randint(0, 2, k)
-d = np.dot(G, test_data) % 2
-x = (-1) ** d
-x[29:] = 0
-
-bits_pos = bits_pos.astype(np.uint32)
-x = x.astype(np.int8)
-
-lib.decode.argtypes = [C.c_size_t, C.c_size_t, C.c_size_t, C.POINTER(C.c_size_t), C.POINTER(C.c_int8), C.POINTER(C.c_int8), C.c_uint]
-lib.get_message.argtypes = [C.c_size_t, C.c_size_t, C.POINTER(C.c_int8), C.POINTER(C.c_int8), C.POINTER(C.c_int8)]
-
-if args.reference:
-    ref_out = test_decoder.decode(H, x, 3)
-    print('decoder output:', ref_out, flush=True)
-    print('msg reconstruction:', test_decoder.get_message(G, ref_out))
-    print('reference decoder: ', np.all(np.equal(test_decoder.get_message(G, ref_out), test_data)), flush=True)
-    np.set_printoptions(linewidth=220)
-    print(test_data)
-    print(test_decoder.get_message(G, ref_out))
-    print(test_decoder.get_message(G, ref_out) ^ test_data)
-
-else:
-    out = np.zeros(n, dtype=np.uint8)
-    # print('python data:', x, flush=True)
-    print('decoder iterations:', lib.decode(n, nodes, bits,
-        bits_pos.ctypes.data_as(C.POINTER(C.c_ulong)),
-        x.ctypes.data_as(C.POINTER(C.c_int8)),
-        out.ctypes.data_as(C.POINTER(C.c_int8)),
-        25), flush=True)
-    print('decoder output:', out)
-    print('msg reconstruction:', test_decoder.get_message(G, out.astype(np.int64)))
-    print('decoder under test:', np.all(np.equal(test_decoder.get_message(G, out.astype(np.int64)), test_data)))
-    np.set_printoptions(linewidth=220)
-    print(test_data)
-    print(test_decoder.get_message(G, out.astype(np.int64)))
-    G = G.astype(np.int8)
-    msg = np.zeros(k, dtype=np.int8)
-    lib.get_message(
-            n, k,
-            G.ctypes.data_as(C.POINTER(C.c_int8)),
-            out.astype(np.int8).ctypes.data_as(C.POINTER(C.c_int8)),
-            msg.ctypes.data_as(C.POINTER(C.c_int8)))
-    print(msg)
-    print(msg ^ test_data)
-
-print('codeword length:', len(x))
-print('data length:', len(test_data))