I0512 16:41:57.401049 30305 caffe.cpp:117] Use CPU.
I0512 16:41:57.516182 30305 caffe.cpp:121] Starting Optimization
I0512 16:41:57.516261 30305 solver.cpp:32] Initializing solver from parameters:
test_iter: 100
test_interval: 1000
base_lr: 0.01
display: 100
max_iter: 6400
lr_policy: "step"
gamma: 0.5
momentum: 0.9
weight_decay: 0.005
stepsize: 5000
snapshot: 6400
snapshot_prefix: "snapshot"
solver_mode: CPU
net: "train_test.prototxt"
I0512 16:41:57.516284 30305 solver.cpp:70] Creating training net from net file: train_test.prototxt
I0512 16:41:57.516444 30305 net.cpp:257] The NetState phase (0) differed from the phase (1) specified by a rule in layer data
I0512 16:41:57.516459 30305 net.cpp:257] The NetState phase (0) differed from the phase (1) specified by a rule in layer accuracy
I0512 16:41:57.516513 30305 net.cpp:42] Initializing net from parameters:
name: "LogisticRegressionNet"
state {
  phase: TRAIN
}
layer {
  name: "data"
  type: "HDF5Data"
  top: "data"
  top: "label"
  include {
    phase: TRAIN
  }
  hdf5_data_param {
    source: "train.txt"
    batch_size: 20
  }
}
layer {
  name: "fc1"
  type: "InnerProduct"
  bottom: "data"
  top: "fc1"
  param {
    lr_mult: 1
    decay_mult: 1
  }
  param {
    lr_mult: 2
    decay_mult: 0
  }
  inner_product_param {
    num_output: 40000
    weight_filler {
      type: "gaussian"
      std: 0.1
    }
    bias_filler {
      type: "constant"
      value: 0
    }
  }
}
layer {
  name: "sigmoid"
  type: "Sigmoid"
  bottom: "fc1"
  top: "fc1"
}
layer {
  name: "fc2"
  type: "InnerProduct"
  bottom: "fc1"
  top: "fc2"
  param {
    lr_mult: 1
    decay_mult: 1
  }
  param {
    lr_mult: 2
    decay_mult: 0
  }
  inner_product_param {
    num_output: 1
    weight_filler {
      type: "gaussian"
      std: 0.01
    }
    bias_filler {
      type: "constant"
      value: 0
    }
  }
}
layer {
  name: "loss"
  type: "SoftmaxWithLoss"
  bottom: "fc2"
  bottom: "label"
}
I0512 16:41:57.516559 30305 layer_factory.hpp:74] Creating layer data
I0512 16:41:57.516569 30305 net.cpp:84] Creating Layer data
I0512 16:41:57.516576 30305 net.cpp:338] data -> data
I0512 16:41:57.516589 30305 net.cpp:338] data -> label
I0512 16:41:57.516598 30305 net.cpp:113] Setting up data
I0512 16:41:57.516603 30305 hdf5_data_layer.cpp:80] Loading list of HDF5 filenames from: train.txt
I0512 16:41:57.516639 30305 hdf5_data_layer.cpp:94] Number of HDF5 files: 2
I0512 16:42:01.519906 30305 net.cpp:120] Top shape: 20 56354 (1127080)
I0512 16:42:01.519930 30305 net.cpp:120] Top shape: 20 (20)
I0512 16:42:01.519938 30305 layer_factory.hpp:74] Creating layer fc1
I0512 16:42:01.519951 30305 net.cpp:84] Creating Layer fc1
I0512 16:42:01.519958 30305 net.cpp:380] fc1 <- data
I0512 16:42:01.519968 30305 net.cpp:338] fc1 -> fc1
I0512 16:42:01.519979 30305 net.cpp:113] Setting up fc1
F0512 16:42:01.519989 30305 blob.cpp:101] Check failed: data_
*** Check failure stack trace: ***
    @     0x7f7c57486e0d  (unknown)
    @     0x7f7c57488cad  (unknown)
    @     0x7f7c574869fc  (unknown)
    @     0x7f7c574895ce  (unknown)
    @     0x7f7c5ce00adb  caffe::Blob<>::mutable_cpu_data()
    @     0x7f7c5ce2e29a  caffe::GaussianFiller<>::Fill()
    @     0x7f7c5ce2cab6  caffe::InnerProductLayer<>::LayerSetUp()
    @     0x7f7c5ce20510  caffe::Net<>::Init()
    @     0x7f7c5ce215c5  caffe::Net<>::Net()
    @     0x7f7c5cf020bf  caffe::Solver<>::InitTrainNet()
    @     0x7f7c5cf03330  caffe::Solver<>::Init()
    @     0x7f7c5cf03506  caffe::Solver<>::Solver()
    @           0x40eb00  caffe::GetSolver<>()
    @           0x407f52  train()
    @           0x4058f7  main
    @     0x7f7c53004040  __libc_start_main
    @           0x405f10  (unknown)
Command terminated by signal 6
	Command being timed: "../build/tools/caffe train -solver solver.prototxt