Python cupy.abs() Examples
The following are 27
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Example #1
Source File: test_cbpdn.py From sporco with BSD 3-Clause "New" or "Revised" License | 6 votes |
def test_11(self): N = 63 M = 4 Nd = 8 D = cp.random.randn(Nd, Nd, M) X0 = cp.zeros((N, N, M)) xr = cp.random.randn(N, N, M) xp = cp.abs(xr) > 3 X0[xp] = cp.random.randn(X0[xp].size) S = cp.sum(ifftn(fftn(D, (N, N), (0, 1)) * fftn(X0, None, (0, 1)), None, (0, 1)).real, axis=2) lmbda = 1e-2 L = 1e3 opt = cbpdn.ConvBPDN.Options({'Verbose': False, 'MaxMainIter': 2000, 'RelStopTol': 1e-9, 'L': L, 'BackTrack': {'Enabled': False}}) b = cbpdn.ConvBPDN(D, S, lmbda, opt) b.solve() X1 = b.X.squeeze() assert rrs(X0, X1) < 5e-4 Sr = b.reconstruct().squeeze() assert rrs(S, Sr) < 2e-4
Example #2
Source File: test_cutensor.py From cupy with MIT License | 6 votes |
def test_elementwise_binary(self): desc_a = cutensor.create_tensor_descriptor(self.a, ct.OP_SIGMOID) desc_c = cutensor.create_tensor_descriptor(self.c, ct.OP_ABS) d = cutensor.elementwise_binary( self.alpha, self.a, desc_a, self.mode_a, self.gamma, self.c, desc_c, self.mode_c, op_AC=ct.OP_MUL ) testing.assert_allclose( self.alpha * (1 / (1 + cupy.exp(-self.a_transposed))) * self.gamma * cupy.abs(self.c), d, rtol=1e-6, atol=1e-6 )
Example #3
Source File: test_cbpdn.py From sporco with BSD 3-Clause "New" or "Revised" License | 6 votes |
def test_10(self): N = 64 M = 4 Nd = 8 D = cp.random.randn(Nd, Nd, M) X0 = cp.zeros((N, N, M)) xr = cp.random.randn(N, N, M) xp = cp.abs(xr) > 3 X0[xp] = cp.random.randn(X0[xp].size) S = cp.sum(ifftn(fftn(D, (N, N), (0, 1)) * fftn(X0, None, (0, 1)), None, (0, 1)).real, axis=2) lmbda = 1e-2 L = 1e3 opt = cbpdn.ConvBPDN.Options({'Verbose': False, 'MaxMainIter': 2000, 'RelStopTol': 1e-9, 'L': L, 'BackTrack': {'Enabled': False}}) b = cbpdn.ConvBPDN(D, S, lmbda, opt) b.solve() X1 = b.X.squeeze() assert rrs(X0, X1) < 5e-4 Sr = b.reconstruct().squeeze() assert rrs(S, Sr) < 3e-4
Example #4
Source File: test_cbpdn.py From sporco with BSD 3-Clause "New" or "Revised" License | 6 votes |
def test_10(self): N = 64 M = 4 Nd = 8 D = cp.random.randn(Nd, Nd, M) X0 = cp.zeros((N, N, M)) xr = cp.random.randn(N, N, M) xp = cp.abs(xr) > 3 X0[xp] = cp.random.randn(X0[xp].size) S = cp.sum(fftconv(D, X0), axis=2) lmbda = 1e-4 rho = 1e-1 opt = cbpdn.ConvBPDN.Options({'Verbose': False, 'MaxMainIter': 500, 'RelStopTol': 1e-3, 'rho': rho, 'AutoRho': {'Enabled': False}}) b = cbpdn.ConvBPDN(D, S, lmbda, opt) b.solve() X1 = b.Y.squeeze() assert rrs(X0, X1) < 5e-5 Sr = b.reconstruct().squeeze() assert rrs(S, Sr) < 1e-4
Example #5
Source File: test_cbpdn.py From sporco with BSD 3-Clause "New" or "Revised" License | 6 votes |
def test_11(self): N = 63 M = 4 Nd = 8 D = cp.random.randn(Nd, Nd, M) X0 = cp.zeros((N, N, M)) xr = cp.random.randn(N, N, M) xp = cp.abs(xr) > 3 X0[xp] = cp.random.randn(X0[xp].size) S = cp.sum(ifftn(fftn(D, (N, N), (0, 1)) * fftn(X0, None, (0, 1)), None, (0, 1)).real, axis=2) lmbda = 1e-4 rho = 1e-1 opt = cbpdn.ConvBPDN.Options({'Verbose': False, 'MaxMainIter': 500, 'RelStopTol': 1e-3, 'rho': rho, 'AutoRho': {'Enabled': False}}) b = cbpdn.ConvBPDN(D, S, lmbda, opt) b.solve() X1 = b.Y.squeeze() assert rrs(X0, X1) < 5e-5 Sr = b.reconstruct().squeeze() assert rrs(S, Sr) < 1e-4
Example #6
Source File: test_bpdn.py From sporco with BSD 3-Clause "New" or "Revised" License | 6 votes |
def test_18(self): N = 64 M = 2 * N L = 8 cp.random.seed(12345) D = cp.random.randn(N, M) x0 = cp.zeros((M, 1)) si = cp.random.permutation(M) x0[si[0:L]] = cp.random.randn(L, 1) s = D.dot(x0) lmbda = 5e-2 opt = bpdn.BPDN.Options({'Verbose': False, 'MaxMainIter': 300, 'RelStopTol': 1e-5, 'AutoRho': {'Enabled': False}}) bp = bpdn.BPDN(D, s, lmbda=lmbda, opt=opt) Xp = bp.solve() epsilon = cp.linalg.norm(D.dot(Xp) - s) opt = bpdn.MinL1InL2Ball.Options( {'Verbose': False, 'MaxMainIter': 300, 'RelStopTol': 1e-5, 'rho': 2e1, 'AutoRho': {'Enabled': False}}) bc = bpdn.MinL1InL2Ball(D, s, epsilon=epsilon, opt=opt) Xc = bc.solve() assert cp.linalg.norm(Xp - Xc) / cp.linalg.norm(Xp) < 1e-3 assert cp.abs(cp.linalg.norm(Xp, 1) - cp.linalg.norm(Xc, 1)) < 1e-3
Example #7
Source File: gla_gpu.py From Deep_VoiceChanger with MIT License | 6 votes |
def __init__(self, parallel, wave_len=254, wave_dif=64, buffer_size=5, loop_num=5, window=np.hanning(254)): self.wave_len = wave_len self.wave_dif = wave_dif self.buffer_size = buffer_size self.loop_num = loop_num self.parallel = parallel self.window = cp.array([window for _ in range(parallel)]) self.wave_buf = cp.zeros((parallel, wave_len+wave_dif), dtype=float) self.overwrap_buf = cp.zeros((parallel, wave_dif*buffer_size+(wave_len-wave_dif)), dtype=float) self.spectrum_buffer = cp.ones((parallel, self.buffer_size, self.wave_len), dtype=complex) self.absolute_buffer = cp.ones((parallel, self.buffer_size, self.wave_len), dtype=complex) self.phase = cp.zeros((parallel, self.wave_len), dtype=complex) self.phase += cp.random.random((parallel, self.wave_len))-0.5 + cp.random.random((parallel, self.wave_len))*1j - 0.5j self.phase[self.phase == 0] = 1 self.phase /= cp.abs(self.phase)
Example #8
Source File: test_bpdn.py From sporco with BSD 3-Clause "New" or "Revised" License | 6 votes |
def test_08(self): N = 64 M = 2 * N L = 4 np.random.seed(12345) D = cp.array(np.random.randn(N, M)) x0 = cp.zeros((M, 1)) si = cp.array(np.random.permutation(M)) x0[si[0:L]] = cp.array(np.random.randn(L, 1)) s0 = D.dot(x0) lmbda = 5e-3 opt = bpdn.BPDN.Options({'Verbose': False, 'MaxMainIter': 500, 'RelStopTol': 5e-4}) b = bpdn.BPDN(D, s0, lmbda, opt) b.solve() x1 = b.Y assert cp.abs(b.itstat[-1].ObjFun - 0.012009) < 1e-5 assert cp.abs(b.itstat[-1].DFid - 1.9636082e-06) < 1e-5 assert cp.abs(b.itstat[-1].RegL1 - 2.401446) < 1e-5 assert cp.linalg.norm(x1 - x0) < 1e-3
Example #9
Source File: test_rpca.py From sporco with BSD 3-Clause "New" or "Revised" License | 6 votes |
def test_01(self): N = 64 K = 5 L = 10 u = cp.random.randn(N, K) U = cp.dot(u, u.T) V = cp.random.randn(N, N) t = cp.sort(cp.abs(V).ravel())[V.size-L] V[cp.abs(V) < t] = 0 D = U + V opt = rpca.RobustPCA.Options({'Verbose': False, 'gEvalY': False, 'MaxMainIter': 250, 'AutoRho': {'Enabled': True}}) b = rpca.RobustPCA(D, None, opt) X, Y = b.solve() assert sm.mse(U, X) < 5e-6 assert sm.mse(V, Y) < 1e-8
Example #10
Source File: test_tvl1.py From sporco with BSD 3-Clause "New" or "Revised" License | 5 votes |
def test_02(self): lmbda = 3 opt = tvl1.TVL1Deconv.Options({'Verbose': False, 'gEvalY': False, 'MaxMainIter': 250, 'rho': 10.0}) b = tvl1.TVL1Deconv(cp.ones((1, )), self.D, lmbda, opt, axes=(0, 1)) X = b.solve() assert cp.abs(b.itstat[-1].ObjFun - 12364.029061174046) < 1e-5 assert sm.mse(self.U, X) < 1e-4
Example #11
Source File: __init__.py From dybm with Apache License 2.0 | 5 votes |
def allclose(a, b, rtol=1e-05, atol=1e-08): return cupy.all(cupy.abs(a - b) < (atol + rtol * cupy.abs(b))) # Constants
Example #12
Source File: test_tvl2.py From sporco with BSD 3-Clause "New" or "Revised" License | 5 votes |
def test_02(self): lmbda = 1e-1 opt = tvl2.TVL2Deconv.Options( {'Verbose': False, 'gEvalY': False, 'MaxMainIter': 250}) b = tvl2.TVL2Deconv(cp.ones((1)), self.D, lmbda, opt, axes=(0, 1, 2)) X = b.solve() assert cp.abs(b.itstat[-1].ObjFun - 567.72425227) < 1e-3 assert sm.mse(self.U, X) < 1e-3
Example #13
Source File: test_tvl2.py From sporco with BSD 3-Clause "New" or "Revised" License | 5 votes |
def test_01(self): lmbda = 1e-1 opt = tvl2.TVL2Denoise.Options( {'Verbose': False, 'gEvalY': False, 'MaxMainIter': 250, 'rho': 10 * lmbda}) b = tvl2.TVL2Denoise(self.D, lmbda, opt, axes=(0, 1, 2)) X = b.solve() assert cp.abs(b.itstat[-1].ObjFun - 366.04267554965134) < 1e-3 assert sm.mse(self.U, X) < 1e-3
Example #14
Source File: test_tvl2.py From sporco with BSD 3-Clause "New" or "Revised" License | 5 votes |
def test_02(self): lmbda = 1e-1 opt = tvl2.TVL2Deconv.Options( {'Verbose': False, 'gEvalY': False, 'MaxMainIter': 250}) b = tvl2.TVL2Deconv(cp.ones((1)), self.D, lmbda, opt, axes=(0, 1)) X = b.solve() assert cp.abs(b.itstat[-1].ObjFun - 564.1586542) < 1e-3 assert sm.mse(self.U, X) < 1e-3
Example #15
Source File: test_tvl2.py From sporco with BSD 3-Clause "New" or "Revised" License | 5 votes |
def test_02(self): lmbda = 1e-1 opt = tvl2.TVL2Deconv.Options( {'Verbose': False, 'gEvalY': False, 'MaxMainIter': 250}) b = tvl2.TVL2Deconv(cp.ones((1)), self.D, lmbda, opt) X = b.solve() assert cp.abs(b.itstat[-1].ObjFun - 45.45958573088) < 1e-3 assert sm.mse(self.U, X) < 1e-3
Example #16
Source File: test_tvl2.py From sporco with BSD 3-Clause "New" or "Revised" License | 5 votes |
def test_01(self): lmbda = 1e-1 opt = tvl2.TVL2Denoise.Options( {'Verbose': False, 'gEvalY': False, 'MaxMainIter': 300, 'rho': 75 * lmbda}) b = tvl2.TVL2Denoise(self.D, lmbda, opt) X = b.solve() assert cp.abs(b.itstat[-1].ObjFun - 32.875710674129564) < 1e-3 assert sm.mse(self.U, X) < 1e-3
Example #17
Source File: test_tvl1.py From sporco with BSD 3-Clause "New" or "Revised" License | 5 votes |
def test_01(self): lmbda = 3 opt = tvl1.TVL1Denoise.Options({'Verbose': False, 'gEvalY': False, 'MaxMainIter': 250}) b = tvl1.TVL1Denoise(self.D, lmbda, opt, axes=(0, 1, 2)) X = b.solve() assert cp.abs(b.itstat[-1].ObjFun - 6219.6209699337605) < 1e-6 assert sm.mse(self.U, X) < 1e-6
Example #18
Source File: test_tvl1.py From sporco with BSD 3-Clause "New" or "Revised" License | 5 votes |
def setup_method(self, method): np.random.seed(12345) N = 32 L = 20 self.U = cp.ones((N, N, N)) self.U[:, 0:(old_div(N, 2))] = -1 self.V = cp.asarray(np.random.randn(N, N, N)) t = cp.sort(cp.abs(self.V).ravel())[self.V.size - L] self.V[cp.abs(self.V) < t] = 0 self.D = self.U + self.V
Example #19
Source File: test_tvl1.py From sporco with BSD 3-Clause "New" or "Revised" License | 5 votes |
def test_01(self): lmbda = 3 opt = tvl1.TVL1Denoise.Options({'Verbose': False, 'gEvalY': False, 'MaxMainIter': 250}) b = tvl1.TVL1Denoise(self.D, lmbda, opt, axes=(0, 1)) X = b.solve() assert cp.abs(b.itstat[-1].ObjFun - 6219.3241727233126) < 1e-6 assert sm.mse(self.U, X) < 1e-6
Example #20
Source File: test_tvl1.py From sporco with BSD 3-Clause "New" or "Revised" License | 5 votes |
def setup_method(self, method): np.random.seed(12345) N = 32 L = 20 self.U = cp.ones((N, N, N)) self.U[:, 0:(old_div(N, 2))] = -1 self.V = cp.asarray(np.random.randn(N, N, N)) t = cp.sort(cp.abs(self.V).ravel())[self.V.size - L] self.V[cp.abs(self.V) < t] = 0 self.D = self.U + self.V
Example #21
Source File: test_tvl1.py From sporco with BSD 3-Clause "New" or "Revised" License | 5 votes |
def test_01(self): lmbda = 3 opt = tvl1.TVL1Denoise.Options({'Verbose': False, 'gEvalY': False, 'MaxMainIter': 250}) b = tvl1.TVL1Denoise(self.D, lmbda, opt) X = b.solve() assert cp.abs(b.itstat[-1].ObjFun - 447.78101756451662) < 1e-6 assert sm.mse(self.U, X) < 1e-6
Example #22
Source File: test_tvl1.py From sporco with BSD 3-Clause "New" or "Revised" License | 5 votes |
def setup_method(self, method): np.random.seed(12345) N = 64 L = 20 self.U = cp.ones((N, N)) self.U[:, 0:(old_div(N, 2))] = -1 self.V = cp.asarray(np.random.randn(N, N)) t = cp.sort(cp.abs(self.V).ravel())[self.V.size - L] self.V[cp.abs(self.V) < t] = 0 self.D = self.U + self.V
Example #23
Source File: test_cbpdn.py From sporco with BSD 3-Clause "New" or "Revised" License | 5 votes |
def test_22(self): N = 32 M = 4 Nd = 8 D = cp.random.randn(Nd, Nd, M) D /= cp.sqrt(cp.sum(D**2, axis=(0, 1))) X0 = cp.zeros((N, N, M)) xr = cp.random.randn(N, N, M) xp = cp.abs(xr) > 3 X0[xp] = cp.random.randn(X0[xp].size) S = cp.sum(fftconv(D, X0), axis=2) lmbda = 1e-3 opt = cbpdn.ConvBPDN.Options( {'Verbose': False, 'MaxMainIter': 500, 'RelStopTol': 1e-5, 'rho': 5e-1, 'AutoRho': {'Enabled': False}}) bp = cbpdn.ConvBPDN(D, S, lmbda, opt) Xp = bp.solve() epsilon = cp.linalg.norm(bp.reconstruct(Xp).squeeze() - S) opt = cbpdn.ConvMinL1InL2Ball.Options( {'Verbose': False, 'MaxMainIter': 500, 'RelStopTol': 1e-5, 'rho': 2e2, 'RelaxParam': 1.0, 'AutoRho': {'Enabled': False}}) bc = cbpdn.ConvMinL1InL2Ball(D, S, epsilon=epsilon, opt=opt) Xc = bc.solve() assert cp.linalg.norm(Xp - Xc) / cp.linalg.norm(Xp) < 1e-3 assert cp.abs(cp.linalg.norm(Xp.ravel(), 1) - cp.linalg.norm(Xc.ravel(), 1)) < 1e-3
Example #24
Source File: spectralloss.py From TSNetVocoder with BSD 3-Clause "New" or "Revised" License | 5 votes |
def _spectrum(self, x, y): S = {'x' : cupy.fft.rfft(self._frame(x), self.fftl) / self.norm, 'y' : cupy.fft.rfft(self._frame(y), self.fftl) / self.norm} A = {'x' : cupy.abs(S['x']), 'y' : cupy.abs(S['y'])} P = {'x' : cupy.angle(S['x']), 'y' : cupy.angle(S['y'])} return A, P
Example #25
Source File: trigonometric.py From cupy with MIT License | 5 votes |
def _unwrap_correct(dd, discont): ddmod = cupy.mod(dd + numpy.pi, 2*numpy.pi) - numpy.pi cupy.copyto(ddmod, numpy.pi, where=(ddmod == -numpy.pi) & (dd > 0)) ph_correct = ddmod - dd cupy.copyto(ph_correct, 0., where=cupy.abs(dd) < discont) return ph_correct
Example #26
Source File: gla_gpu.py From Deep_VoiceChanger with MIT License | 5 votes |
def inverse(self, spectrum, in_phase=None): if in_phase is None: in_phase = self.phase else: in_phase = cp.array(in_phase) spectrum = cp.array(spectrum) self.spectrum_buffer[:, -1] = spectrum * in_phase self.absolute_buffer[:, -1] = spectrum for _ in range(self.loop_num): self.overwrap_buf *= 0 waves = cp.fft.ifft(self.spectrum_buffer, axis=2).real last = self.spectrum_buffer for i in range(self.buffer_size): self.overwrap_buf[:,i*self.wave_dif:i*self.wave_dif+self.wave_len] += waves[:,i] waves = cp.stack([self.overwrap_buf[:, i*self.wave_dif:i*self.wave_dif+self.wave_len]*self.window for i in range(self.buffer_size)], axis=1) spectrum = cp.fft.fft(waves, axis=2) self.spectrum_buffer = self.absolute_buffer * spectrum / (cp.abs(spectrum)+1e-10) self.spectrum_buffer += 0.5 * (self.spectrum_buffer - last) dst = cp.asnumpy(self.spectrum_buffer[:, 0]) self.absolute_buffer = cp.roll(self.absolute_buffer, -1, axis=1) self.spectrum_buffer = cp.roll(self.spectrum_buffer, -1, axis=1) return dst
Example #27
Source File: test_raw.py From cupy with MIT License | 4 votes |
def test_cuFloatComplex(self): N = 100 block = 32 grid = (N + block - 1) // block dtype = cupy.complex64 mod = cupy.RawModule( code=_test_cuComplex, translate_cucomplex=True) a = cupy.random.random((N,)) + 1j*cupy.random.random((N,)) a = a.astype(dtype) b = cupy.random.random((N,)) + 1j*cupy.random.random((N,)) b = b.astype(dtype) c = cupy.random.random((N,)) + 1j*cupy.random.random((N,)) c = c.astype(dtype) out = cupy.zeros((N,), dtype=dtype) out_float = cupy.zeros((N,), dtype=cupy.float32) out_up = cupy.zeros((N,), dtype=cupy.complex128) ker = mod.get_function('test_addf') ker((grid,), (block,), (a, b, out)) assert (out == a + b).all() ker = mod.get_function('test_subf') ker((grid,), (block,), (a, b, out)) assert (out == a - b).all() ker = mod.get_function('test_mulf') ker((grid,), (block,), (a, b, out)) assert (out == a * b).all() ker = mod.get_function('test_divf') ker((grid,), (block,), (a, b, out)) assert (out == a / b).all() ker = mod.get_function('test_conjf') ker((grid,), (block,), (a, out)) assert (out == cupy.conj(a)).all() ker = mod.get_function('test_absf') ker((grid,), (block,), (a, out_float)) assert (out_float == cupy.abs(a)).all() ker = mod.get_function('test_fmaf') ker((grid,), (block,), (a, b, c, out)) assert (out == a * b + c).all() ker = mod.get_function('test_makef') ker((grid,), (block,), (out,)) # because of precision issue, the (A==B).all() semantics would fail assert cupy.allclose(out, 1.8 - 1j * 8.7) ker = mod.get_function('test_upcast') ker((grid,), (block,), (a, out_up)) assert (out_up == a.astype(cupy.complex128)).all() # NumPy scalars. b = cupy.complex64(2 + 3j) ker = mod.get_function('test_addf_scalar') ker((grid,), (block,), (a, b, out)) assert (out == a + b).all()