larroy commented on issue #10856: Failed OpenMP assertion when loading MXNet compiled with DEBUG=1 URL: https://github.com/apache/incubator-mxnet/issues/10856#issuecomment-505130046 ``` (py3_venv) pllarroy@elite:134: ~/d/GradOptMXNet [autograd_fixes]> cat fc_mx.py #!/usr/bin/env python # -*- coding: utf-8 -*- import mxnet as mx import mxnet.autograd as ag from mxnet import nd from mxnet import gluon import sys def main(): x = nd.array([[0.2131, 0.5449, 0.9910], [0.1600, 0.1665, 0.1387], [0.6242, 0.0409, 0.0663], [0.6590, 0.9822, 0.3108], [0.8566, 0.3848, 0.8385]]) x.attach_grad() net = gluon.nn.Sequential() with net.name_scope(): net.add(gluon.nn.Dense(3)) #net.initialize() net.initialize(mx.init.Xavier(magnitude=2.24)) w = net.collect_params().values() print(f"w {w}") with ag.record(): y = net.forward(x) x_grad = ag.grad(y, x, create_graph=True, retain_graph=True)[0] print(x_grad) return 1 if __name__ == '__main__': sys.exit(main()) ``` Build options, defaults as in https://github.com/apache/incubator-mxnet/blob/master/cmake/cmake_options.yml The crash happened as I was running the script above.
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