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C contiguous stride not working for the example #177
Description
Hi cuquantum team, I am trying to play around with the example python/samples/cutensornet/tensornet_example.py, and I wonder if I can use the C-contiguous arrays for the optimization of contraction paths and also the actual contraction. To do this, I just replaced
strides_in = (0,0,0,0) with strides_in = (A_d.strides, B_d.strides, C_d.strides, D_d.strides) and also
desc_net = cutn.create_network_descriptor(handle,
num_inputs, num_modes_in, extents_in, strides_in, modes_in, qualifiers_in, # inputs
nmode_R, extent_R, 0, modes_R, # output
data_type, compute_type)with
desc_net = cutn.create_network_descriptor(handle,
num_inputs, num_modes_in, extents_in, strides_in, modes_in, qualifiers_in, # inputs
nmode_R, extent_R, R_d.strides, modes_R, # output
# nmode_R, extent_R, 0, modes_R, # output
data_type, compute_type)and didn't change any other thing. However, the output is:
cuTensorNet-vers: 20600
===== device info ======
GPU-local-id: 0
GPU-name: NVIDIA A100-SXM4-40GB MIG 3g.20gb
GPU-clock: 1410000
GPU-memoryClock: 1215000
GPU-nSM: 42
GPU-major: 8
GPU-minor: 0
========================
Include headers and define data types.
Define network, modes, and extents.
(262144,)
((4,), (4,), (4,), (4,))
Initialize the cuTensorNet library and create a network descriptor.
Traceback (most recent call last):
File "pathtotest/cutensornet_test/stride_modification.py", line 125, in <module>
cutn.contraction_optimize(handle, desc_net, optimizer_config, workspace_limit, optimizer_info)
File "cuquantum/cutensornet/cutensornet.pyx", line 754, in cuquantum.cutensornet.cutensornet.contraction_optimize
File "cuquantum/cutensornet/cutensornet.pyx", line 768, in cuquantum.cutensornet.cutensornet.contraction_optimize
File "cuquantum/cutensornet/cutensornet.pyx", line 277, in cuquantum.cutensornet.cutensornet.check_status
cuquantum.cutensornet.cutensornet.cuTensorNetError: ALL_HYPER_SAMPLES_FAILED (24): CUTENSORNET_STATUS_ALL_HYPER_SAMPLES_FAILED
Could you tell me what happened here or how can I use C-contiguous arrays in this example instead of F-contiguous? Thanks in advance!
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