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From "Zheng, Da" <dzz...@amazon.com>
Subject Re: [VOTE] Release Apache MXNet (incubating) version 1.2.0.RC0
Date Tue, 24 Apr 2018 00:12:09 GMT
I think I have found the root of the problem.

The tutorial loads a model from onnx, which uses padding (left, right, top, bottom). But mxnet
uses padding (height, width). Currently, when an ONNX model is loaded to MXNet, the padding
is converted correctly. MXNet conv doesn't check the number of elements in the padding and
ignores the problem. However, mxnet-mkldnn checks it and fails.

The correct way of fixing this issue is to check the number of elements in the padding tuple
in mxnet conv. If the tuple size mismatches, it should fail. When an ONNX model is loaded
to MXNet, the padding should be converted correctly.

For the time being, I'll just fix MKLDNN so it doesn't check the tuple length of padding.

Best,
Da

´╗┐On 4/23/18, 2:58 PM, "Zheng, Da" <dzzhen@amazon.com> wrote:

    I can reproduce the bug now. I'm working on a fix for the bug.
    
    Currently, there are a few more bug fixes for MKLDNN.
    https://github.com/apache/incubator-mxnet/pull/10651
    https://github.com/apache/incubator-mxnet/pull/10624
    https://github.com/apache/incubator-mxnet/pull/10619/files
    https://github.com/apache/incubator-mxnet/pull/10616
    https://github.com/apache/incubator-mxnet/pull/10591/files
    
    They are ready for review.
    
    I just discussed with @Anirudh. Maybe we should say in the release note that MKLDNN in
MXNet is still experimental.
    What do you think?
    
    Best,
    Da
    
    On 4/21/18, 7:59 PM, "Zheng, Da" <dzzhen@amazon.com> wrote:
    
        It seems I have problems of compiling scala when running "make docs". Please see the
error below.
        
        Are there any instructions of compiling these scala code? I guess I might miss some
packages.
        I tried installing libslf4j-java and didn't help.
        
        Best,
        Da
        
        Execute "cd /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/docs/../scala-package;
scaladoc `find . -type f -name "*.scala" | egrep "\/core|\/infer" | egrep -v "Suite"`; exit
0"
        ./examples/src/main/scala/org/apache/mxnetexamples/infer/objectdetector/SSDClassifierExample.scala:24:
error: object kohsuke is not a member of package org
        import org.kohsuke.args4j.{CmdLineParser, Option}
                   ^
        ./examples/src/main/scala/org/apache/mxnetexamples/infer/objectdetector/SSDClassifierExample.scala:25:
error: object slf4j is not a member of package org
        import org.slf4j.LoggerFactory
                   ^
        ./examples/src/main/scala/org/apache/mxnetexamples/infer/objectdetector/SSDClassifierExample.scala:41:
error: class Option is abstract; cannot be instantiated
          @Option(name = "--model-path-prefix", usage = "the input model directory and prefix
of the model")
           ^
        warning: no valid targets for annotation on value modelPathPrefix - it is discarded
unused. You may specify targets with meta-annotations, e.g. @(<error> @getter)
        ./examples/src/main/scala/org/apache/mxnetexamples/infer/objectdetector/SSDClassifierExample.scala:43:
error: class Option is abstract; cannot be instantiated
          @Option(name = "--input-image", usage = "the input image")
           ^
        warning: no valid targets for annotation on value inputImagePath - it is discarded
unused. You may specify targets with meta-annotations, e.g. @(<error> @getter)
        ./examples/src/main/scala/org/apache/mxnetexamples/infer/objectdetector/SSDClassifierExample.scala:45:
error: class Option is abstract; cannot be instantiated
          @Option(name = "--input-dir", usage = "the input batch of images directory")
           ^
        warning: no valid targets for annotation on value inputImageDir - it is discarded
unused. You may specify targets with meta-annotations, e.g. @(<error> @getter)
        ./examples/src/main/scala/org/apache/mxnetexamples/infer/objectdetector/SSDClassifierExample.scala:51:
error: not found: value LoggerFactory
          private val logger = LoggerFactory.getLogger(classOf[SSDClassifierExample])
                               ^
        ./examples/src/main/scala/org/apache/mxnetexamples/infer/objectdetector/SSDClassifierExample.scala:109:
error: not found: type CmdLineParser
            val parser : CmdLineParser = new CmdLineParser(inst)
                         ^
        ./examples/src/main/scala/org/apache/mxnetexamples/infer/objectdetector/SSDClassifierExample.scala:109:
error: not found: type CmdLineParser
            val parser : CmdLineParser = new CmdLineParser(inst)
                                             ^
        ./examples/src/main/scala/org/apache/mxnetexamples/infer/imageclassifier/ImageClassifierExample.scala:21:
error: object kohsuke is not a member of package org
        import org.kohsuke.args4j.{CmdLineParser, Option}
                   ^
        ./examples/src/main/scala/org/apache/mxnetexamples/infer/imageclassifier/ImageClassifierExample.scala:22:
error: object slf4j is not a member of package org
        import org.slf4j.LoggerFactory
                   ^
        ./examples/src/main/scala/org/apache/mxnetexamples/infer/imageclassifier/ImageClassifierExample.scala:40:
error: not found: value LoggerFactory
          private val logger = LoggerFactory.getLogger(classOf[ImageClassifierExample])
                               ^
        ./examples/src/main/scala/org/apache/mxnetexamples/infer/imageclassifier/ImageClassifierExample.scala:108:
error: not found: type CmdLineParser
            val parser: CmdLineParser = new CmdLineParser(inst)
                        ^
        ./examples/src/main/scala/org/apache/mxnetexamples/infer/imageclassifier/ImageClassifierExample.scala:108:
error: not found: type CmdLineParser
            val parser: CmdLineParser = new CmdLineParser(inst)
                                            ^
        ./examples/src/main/scala/org/apache/mxnetexamples/infer/imageclassifier/ImageClassifierExample.scala:157:
error: class Option is abstract; cannot be instantiated
          @Option(name = "--model-path-prefix", usage = "the input model directory")
           ^
        warning: no valid targets for annotation on value modelPathPrefix - it is discarded
unused. You may specify targets with meta-annotations, e.g. @(<error> @getter)
        ./examples/src/main/scala/org/apache/mxnetexamples/infer/imageclassifier/ImageClassifierExample.scala:159:
error: class Option is abstract; cannot be instantiated
          @Option(name = "--input-image", usage = "the input image")
           ^
        warning: no valid targets for annotation on value inputImagePath - it is discarded
unused. You may specify targets with meta-annotations, e.g. @(<error> @getter)
        ./examples/src/main/scala/org/apache/mxnetexamples/infer/imageclassifier/ImageClassifierExample.scala:161:
error: class Option is abstract; cannot be instantiated
          @Option(name = "--input-dir", usage = "the input batch of images directory")
           ^
        warning: no valid targets for annotation on value inputImageDir - it is discarded
unused. You may specify targets with meta-annotations, e.g. @(<error> @getter)
        ./core/src/main/scala/org/apache/mxnet/util/NativeLibraryLoader.scala:22: error: object
slf4j is not a member of package org
        import org.slf4j.{Logger, LoggerFactory}
                   ^
        ./core/src/main/scala/org/apache/mxnet/util/NativeLibraryLoader.scala:27: error: not
found: type Logger
          private val logger: Logger = LoggerFactory.getLogger(classOf[NativeLibraryLoader])
                              ^
        ./core/src/main/scala/org/apache/mxnet/util/NativeLibraryLoader.scala:27: error: not
found: value LoggerFactory
          private val logger: Logger = LoggerFactory.getLogger(classOf[NativeLibraryLoader])
                                       ^
        ./core/src/main/scala/org/apache/mxnet/util/WarnIfNotDisposed.scala:20: error: object
slf4j is not a member of package org
        import org.slf4j.{Logger, LoggerFactory}
                   ^
        ./core/src/main/scala/org/apache/mxnet/util/WarnIfNotDisposed.scala:27: error: not
found: type Logger
          private val logger: Logger = LoggerFactory.getLogger(classOf[WarnIfNotDisposed])
                              ^
        ./core/src/main/scala/org/apache/mxnet/util/WarnIfNotDisposed.scala:27: error: not
found: value LoggerFactory
          private val logger: Logger = LoggerFactory.getLogger(classOf[WarnIfNotDisposed])
                                       ^
        ./core/src/main/scala/org/apache/mxnet/LRScheduler.scala:19: error: object slf4j is
not a member of package org
        import org.slf4j.LoggerFactory
                   ^
        ./core/src/main/scala/org/apache/mxnet/LRScheduler.scala:56: error: not found: value
LoggerFactory
          private val logger = LoggerFactory.getLogger(classOf[FactorScheduler])
                               ^
        ./core/src/main/scala/org/apache/mxnet/optimizer/SGD.scala:59: error: value clip is
not a member of object org.apache.mxnet.NDArray
              resdGrad = NDArray.clip(resdGrad, -clipGradient, clipGradient)
                                 ^
        ./core/src/main/scala/org/apache/mxnet/optimizer/AdaGrad.scala:54: error: value sqrt
is not a member of object org.apache.mxnet.NDArray
            val newWeight = (-lr * (resdGrad / NDArray.sqrt(history + this.epsilon) + this.wd
* weight))
                                                       ^
        ./core/src/main/scala/org/apache/mxnet/optimizer/AdaGrad.scala:54: error: overloaded
method value * with alternatives:
          (x: Double)Double <and>
          (x: Float)Float <and>
          (x: Long)Float <and>
          (x: Int)Float <and>
          (x: Char)Float <and>
          (x: Short)Float <and>
          (x: Byte)Float
         cannot be applied to (org.apache.mxnet.NDArray)
            val newWeight = (-lr * (resdGrad / NDArray.sqrt(history + this.epsilon) + this.wd
* weight))
                                                                                         
    ^
        ./core/src/main/scala/org/apache/mxnet/optimizer/Adam.scala:90: error: value clip
is not a member of object org.apache.mxnet.NDArray
              resdGrad = NDArray.clip(resdGrad, -clipGradient, clipGradient)
                                 ^
        ./core/src/main/scala/org/apache/mxnet/optimizer/Adam.scala:99: error: value sqrt
is not a member of object org.apache.mxnet.NDArray
            val step = (learningRate * meanT / (NDArray.sqrt(varianceT) + epsilon))
                                                        ^
        ./core/src/main/scala/org/apache/mxnet/optimizer/NAG.scala:67: error: value clip is
not a member of object org.apache.mxnet.NDArray
              resdGrad = NDArray.clip(resdGrad, -clipGradient, clipGradient)
                                 ^
        ./core/src/main/scala/org/apache/mxnet/optimizer/AdaDelta.scala:52: error: value clip
is not a member of object org.apache.mxnet.NDArray
              resdGrad = NDArray.clip(resdGrad, -clipGradient, clipGradient)
                                 ^
        ./core/src/main/scala/org/apache/mxnet/optimizer/AdaDelta.scala:62: error: value sqrt
is not a member of object org.apache.mxnet.NDArray
              NDArray.sqrt(accDelta + this.epsilon) /
                      ^
        ./core/src/main/scala/org/apache/mxnet/optimizer/AdaDelta.scala:63: error: value sqrt
is not a member of object org.apache.mxnet.NDArray
              NDArray.sqrt(accG + this.epsilon) * resdGrad).disposeDepsExcept(accDelta, accG,
resdGrad)
                      ^
        ./core/src/main/scala/org/apache/mxnet/optimizer/RMSProp.scala:56: error: value clip
is not a member of object org.apache.mxnet.NDArray
              resdGrad = NDArray.clip(resdGrad, -clipGradient, clipGradient)
                                 ^
        ./core/src/main/scala/org/apache/mxnet/optimizer/RMSProp.scala:71: error: value sqrt
is not a member of object org.apache.mxnet.NDArray
              (this.gamma2 * delta - lr * (resdGrad / NDArray.sqrt(n - g * g + 1e-4f) + wd
* weight))
                                                              ^
        ./core/src/main/scala/org/apache/mxnet/optimizer/RMSProp.scala:71: error: overloaded
method value * with alternatives:
          (x: Double)Double <and>
          (x: Float)Float <and>
          (x: Long)Float <and>
          (x: Int)Float <and>
          (x: Char)Float <and>
          (x: Short)Float <and>
          (x: Byte)Float
         cannot be applied to (org.apache.mxnet.NDArray)
              (this.gamma2 * delta - lr * (resdGrad / NDArray.sqrt(n - g * g + 1e-4f) + wd
* weight))
                                                                                         
 ^
        ./core/src/main/scala/org/apache/mxnet/optimizer/SGLD.scala:65: error: value clip
is not a member of object org.apache.mxnet.NDArray
              resdGrad = NDArray.clip(resdGrad, -clipGradient, clipGradient)
                                 ^
        ./core/src/main/scala/org/apache/mxnet/optimizer/DCASGD.scala:61: error: value clip
is not a member of object org.apache.mxnet.NDArray
              resdGrad = NDArray.clip(resdGrad, -clipGradient, clipGradient)
                                 ^
        ./core/src/main/scala/org/apache/mxnet/contrib/NDArray.scala:21: error: object AddNDArrayFunctions
is not a member of package org.apache.mxnet
        import org.apache.mxnet.AddNDArrayFunctions
               ^
        ./core/src/main/scala/org/apache/mxnet/contrib/NDArray.scala:23: error: not found:
type AddNDArrayFunctions
        @AddNDArrayFunctions(true)
         ^
        ./core/src/main/scala/org/apache/mxnet/contrib/Symbol.scala:21: error: object AddSymbolFunctions
is not a member of package org.apache.mxnet
        import org.apache.mxnet.AddSymbolFunctions
               ^
        ./core/src/main/scala/org/apache/mxnet/contrib/Symbol.scala:23: error: not found:
type AddSymbolFunctions
        @AddSymbolFunctions(true)
         ^
        ./core/src/main/scala/org/apache/mxnet/FeedForward.scala:22: error: object slf4j is
not a member of package org
        import org.slf4j.{LoggerFactory, Logger}
                   ^
        ./core/src/main/scala/org/apache/mxnet/FeedForward.scala:60: error: not found: type
Logger
          val logger: Logger = LoggerFactory.getLogger(classOf[FeedForward])
                      ^
        ./core/src/main/scala/org/apache/mxnet/FeedForward.scala:60: error: not found: value
LoggerFactory
          val logger: Logger = LoggerFactory.getLogger(classOf[FeedForward])
                               ^
        ./core/src/main/scala/org/apache/mxnet/FeedForward.scala:265: error: not found: type
Logger
                  logger: Logger, workLoadList: Seq[Float]): Unit = {
                          ^
        ./core/src/main/scala/org/apache/mxnet/FeedForward.scala:338: error: not found: type
Logger
                          batchEndCallback: BatchEndCallback = null, logger: Logger = FeedForward.logger,
                                                                             ^
        ./core/src/main/scala/org/apache/mxnet/FeedForward.scala:299: error: not found: type
Logger
                  batchEndCallback: BatchEndCallback, logger: Logger,
                                                              ^
        ./core/src/main/scala/org/apache/mxnet/FeedForward.scala:408: error: not found: type
Logger
          private val logger: Logger = LoggerFactory.getLogger(classOf[FeedForward])
                              ^
        ./core/src/main/scala/org/apache/mxnet/FeedForward.scala:408: error: not found: value
LoggerFactory
          private val logger: Logger = LoggerFactory.getLogger(classOf[FeedForward])
                                       ^
        ./core/src/main/scala/org/apache/mxnet/FeedForward.scala:486: error: not found: type
Logger
            private var logger: Logger = FeedForward.logger
                                ^
        ./core/src/main/scala/org/apache/mxnet/FeedForward.scala:641: error: not found: type
Logger
            def setLogger(logger: Logger): Builder = {
                                  ^
        ./core/src/main/scala/org/apache/mxnet/Executor.scala:21: error: object slf4j is not
a member of package org
        import org.slf4j.{Logger, LoggerFactory}
                   ^
        ./core/src/main/scala/org/apache/mxnet/Executor.scala:60: error: not found: type Logger
          private val logger: Logger = LoggerFactory.getLogger(classOf[Executor])
                              ^
        ./core/src/main/scala/org/apache/mxnet/Executor.scala:60: error: not found: value
LoggerFactory
          private val logger: Logger = LoggerFactory.getLogger(classOf[Executor])
                                       ^
        ./core/src/main/scala/org/apache/mxnet/NDArray.scala:24: error: object slf4j is not
a member of package org
        import org.slf4j.LoggerFactory
                   ^
        ./core/src/main/scala/org/apache/mxnet/NDArray.scala:33: error: not found: type AddNDArrayFunctions
        @AddNDArrayFunctions(false)
         ^
        ./core/src/main/scala/org/apache/mxnet/NDArray.scala:36: error: not found: value LoggerFactory
          private val logger = LoggerFactory.getLogger(classOf[NDArray])
                               ^
        ./core/src/main/scala/org/apache/mxnet/NDArray.scala:88: warning: non-variable type
argument org.apache.mxnet.NDArray in type pattern Seq[org.apache.mxnet.NDArray] (the underlying
of Seq[org.apache.mxnet.NDArray]) is unchecked since it is eliminated by erasure
                  case ndArr: Seq[NDArray] => (ndArr.toArray, ndArr.toArray.map(_.handle))
                              ^
        ./core/src/main/scala/org/apache/mxnet/NDArray.scala:452: error: value _crop_assign
is not a member of object org.apache.mxnet.NDArray
                  NDArray._crop_assign(Map("out" -> ret,
                          ^
        ./core/src/main/scala/org/apache/mxnet/EvalMetric.scala:111: error: value argmax is
not a member of object org.apache.mxnet.NDArray
                NDArray.argmax(Map("axis" -> 1, "keepdims" -> true))(pred)
                        ^
        ./core/src/main/scala/org/apache/mxnet/EvalMetric.scala:113: error: value argmax_channel
is not a member of object org.apache.mxnet.NDArray
                NDArray.argmax_channel(pred)
                        ^
        ./core/src/main/scala/org/apache/mxnet/EvalMetric.scala:175: error: value argmax_channel
is not a member of object org.apache.mxnet.NDArray
              val predLabel = NDArray.argmax_channel(pred)
                                      ^
        ./core/src/main/scala/org/apache/mxnet/EvalMetric.scala:235: error: value pick is
not a member of object org.apache.mxnet.NDArray
              val p = NDArray.pick(Map("axis" -> this.axis))(pred, label)
                              ^
        ./core/src/main/scala/org/apache/mxnet/ExecutorManager.scala:21: error: object slf4j
is not a member of package org
        import org.slf4j.{LoggerFactory, Logger}
                   ^
        ./core/src/main/scala/org/apache/mxnet/ExecutorManager.scala:173: error: not found:
type Logger
          val logger: Logger = LoggerFactory.getLogger(classOf[DataParallelExecutorManager])
                      ^
        ./core/src/main/scala/org/apache/mxnet/ExecutorManager.scala:173: error: not found:
value LoggerFactory
          val logger: Logger = LoggerFactory.getLogger(classOf[DataParallelExecutorManager])
                               ^
        ./core/src/main/scala/org/apache/mxnet/module/BucketingModule.scala:21: error: object
slf4j is not a member of package org
        import org.slf4j.LoggerFactory
                   ^
        ./core/src/main/scala/org/apache/mxnet/module/BucketingModule.scala:22: error: object
slf4j is not a member of package org
        import org.slf4j.Logger
                   ^
        ./core/src/main/scala/org/apache/mxnet/module/BucketingModule.scala:41: error: not
found: value LoggerFactory
          private val logger = LoggerFactory.getLogger(classOf[BucketingModule])
                               ^
        ./core/src/main/scala/org/apache/mxnet/module/BaseModule.scala:25: error: object slf4j
is not a member of package org
        import org.slf4j.Logger
                   ^
        ./core/src/main/scala/org/apache/mxnet/module/BaseModule.scala:34: error: not found:
type Logger
            typeName: String, throws: Boolean, logger: Logger): Unit = {
                                                       ^
        ./core/src/main/scala/org/apache/mxnet/module/SequentialModule.scala:21: error: object
slf4j is not a member of package org
        import org.slf4j.LoggerFactory
                   ^
        ./core/src/main/scala/org/apache/mxnet/module/SequentialModule.scala:34: error: not
found: value LoggerFactory
          private val logger = LoggerFactory.getLogger(classOf[SequentialModule])
                               ^
        ./core/src/main/scala/org/apache/mxnet/module/Module.scala:25: error: object slf4j
is not a member of package org
        import org.slf4j.LoggerFactory
                   ^
        ./core/src/main/scala/org/apache/mxnet/module/Module.scala:43: error: not found: value
LoggerFactory
          private val logger = LoggerFactory.getLogger(classOf[Module])
                               ^
        ./core/src/main/scala/org/apache/mxnet/module/DataParallelExecutorGroup.scala:23:
error: object slf4j is not a member of package org
        import org.slf4j.{Logger, LoggerFactory}
                   ^
        ./core/src/main/scala/org/apache/mxnet/module/DataParallelExecutorGroup.scala:29:
error: not found: type Logger
          private val logger: Logger = LoggerFactory.getLogger(classOf[DataParallelExecutorGroup])
                              ^
        ./core/src/main/scala/org/apache/mxnet/module/DataParallelExecutorGroup.scala:29:
error: not found: value LoggerFactory
          private val logger: Logger = LoggerFactory.getLogger(classOf[DataParallelExecutorGroup])
                                       ^
        ./core/src/main/scala/org/apache/mxnet/module/DataParallelExecutorGroup.scala:44:
error: value crop is not a member of object org.apache.mxnet.NDArray
                    NDArray.crop(Map(
                            ^
        ./core/src/main/scala/org/apache/mxnet/module/DataParallelExecutorGroup.scala:50:
error: value crop is not a member of object org.apache.mxnet.NDArray
                    val dDstCopy: NDArray = NDArray.crop(Map(
                                                    ^
        ./core/src/main/scala/org/apache/mxnet/module/DataParallelExecutorGroup.scala:572:
error: value slice_axis is not a member of object org.apache.mxnet.NDArray
                      val ogMySlice: NDArray = NDArray.slice_axis(
                                                       ^
        ./core/src/main/scala/org/apache/mxnet/module/DataParallelExecutorGroup.scala:598:
error: value slice_axis is not a member of object org.apache.mxnet.NDArray
                    val labelMySlice: NDArray = NDArray.slice_axis(Map(
                                                        ^
        ./core/src/main/scala/org/apache/mxnet/module/BaseModule.scala:24: error: object slf4j
is not a member of package org
        import org.slf4j.LoggerFactory
                   ^
        ./core/src/main/scala/org/apache/mxnet/module/BaseModule.scala:134: error: not found:
value LoggerFactory
          private val logger = LoggerFactory.getLogger(classOf[BaseModule])
                               ^
        ./core/src/main/scala/org/apache/mxnet/Model.scala:22: error: object slf4j is not
a member of package org
        import org.slf4j.LoggerFactory
                   ^
        ./core/src/main/scala/org/apache/mxnet/Model.scala:31: error: not found: value LoggerFactory
          private val logger = LoggerFactory.getLogger(classOf[Model])
                               ^
        ./core/src/main/scala/org/apache/mxnet/Monitor.scala:21: error: object slf4j is not
a member of package org
        import org.slf4j.LoggerFactory
                   ^
        ./core/src/main/scala/org/apache/mxnet/Monitor.scala:37: error: not found: value LoggerFactory
          private val logger = LoggerFactory.getLogger(classOf[Monitor])
                               ^
        ./core/src/main/scala/org/apache/mxnet/Monitor.scala:41: error: value norm is not
a member of object org.apache.mxnet.NDArray
              NDArray.norm(x) / math.sqrt(x.size.toDouble).toFloat
                      ^
        ./core/src/main/scala/org/apache/mxnet/KVStoreServer.scala:21: error: object slf4j
is not a member of package org
        import org.slf4j.{Logger, LoggerFactory}
                   ^
        ./core/src/main/scala/org/apache/mxnet/KVStoreServer.scala:24: error: not found: type
Logger
          private val logger: Logger = LoggerFactory.getLogger(classOf[KVStoreServer])
                              ^
        ./core/src/main/scala/org/apache/mxnet/KVStoreServer.scala:24: error: not found: value
LoggerFactory
          private val logger: Logger = LoggerFactory.getLogger(classOf[KVStoreServer])
                                       ^
        ./core/src/main/scala/org/apache/mxnet/KVStoreServer.scala:49: error: not found: type
Logger
          private val logger: Logger = LoggerFactory.getLogger(classOf[KVStoreServer])
                              ^
        ./core/src/main/scala/org/apache/mxnet/KVStoreServer.scala:49: error: not found: value
LoggerFactory
          private val logger: Logger = LoggerFactory.getLogger(classOf[KVStoreServer])
                                       ^
        ./core/src/main/scala/org/apache/mxnet/Symbol.scala:22: error: object slf4j is not
a member of package org
        import org.slf4j.{Logger, LoggerFactory}
                   ^
        ./core/src/main/scala/org/apache/mxnet/Symbol.scala:33: error: not found: type Logger
          private val logger: Logger = LoggerFactory.getLogger(classOf[Symbol])
                              ^
        ./core/src/main/scala/org/apache/mxnet/Symbol.scala:33: error: not found: value LoggerFactory
          private val logger: Logger = LoggerFactory.getLogger(classOf[Symbol])
                                       ^
        ./core/src/main/scala/org/apache/mxnet/Symbol.scala:826: error: not found: type AddSymbolFunctions
        @AddSymbolFunctions(false)
         ^
        ./core/src/main/scala/org/apache/mxnet/Symbol.scala:829: error: not found: value LoggerFactory
          private val logger = LoggerFactory.getLogger(classOf[Symbol])
                               ^
        ./core/src/main/scala/org/apache/mxnet/IO.scala:23: error: object slf4j is not a member
of package org
        import org.slf4j.LoggerFactory
                   ^
        warning: there was one deprecation warning; re-run with -deprecation for details
        warning: there were 11 feature warnings; re-run with -feature for details
        model contains 119 documentable templates
        ./core/src/main/scala/org/apache/mxnet/RecordIO.scala:99: warning: Tag '@param' must
be followed by a symbol name
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/RecordIO.scala:99: warning: Tag '@param' is
not recognised
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/module/BaseModule.scala:365: warning: Could
not find any member to link for "IOException".
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/module/BaseModule.scala:506: warning: Could
not find any member to link for "grad1_dev1,".
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/module/BaseModule.scala:488: warning: Could
not find any member to link for "out1_dev1,".
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/module/BaseModule.scala:204: warning: Could
not find any member to link for "out1_batch1,".
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/module/DataParallelExecutorGroup.scala:533:
warning: Could not find any member to link for "grad1_dev1,".
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/module/DataParallelExecutorGroup.scala:511:
warning: Could not find any member to link for "out1_dev1,".
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/module/Module.scala:500: warning: Could not
find any member to link for "grad1_dev1,".
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/module/Module.scala:476: warning: Could not
find any member to link for "out1_dev1,".
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/module/SequentialModule.scala:366: warning:
Could not find any member to link for "grad1_dev1,".
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/module/SequentialModule.scala:342: warning:
Could not find any member to link for "out1_dev1,".
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/module/BucketingModule.scala:360: warning:
Could not find any member to link for "grad1_dev1,".
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/module/BucketingModule.scala:336: warning:
Could not find any member to link for "out1_dev1,".
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/Executor.scala:256: warning: Could not find
any member to link for "IllegalArgumentException".
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/Executor.scala:244: warning: Could not find
any member to link for "IllegalArgumentException".
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/Executor.scala:232: warning: Could not find
any member to link for "IllegalArgumentException".
          /**
          ^
        ./core/src/main/scala/org/apache/mxnet/Executor.scala:220: warning: Could not find
any member to link for "IllegalArgumentException".
          /**
          ^
        27 warnings found
        131 errors found
        Execute "rm -rf /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/docs/_build/html/api/scala/docs"
        Execute "mkdir -p /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/docs/_build/html/api/scala/docs"
        Execute "cd /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/docs/../scala-package
&& mv -f index /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/docs/_build/html/api/scala/docs"
        Execute "cd /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/docs/../scala-package
&& mv -f index.html /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/docs/_build/html/api/scala/docs"
        Execute "cd /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/docs/../scala-package
&& mv -f org /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/docs/_build/html/api/scala/docs"
        Execute "cd /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/docs/../scala-package
&& mv -f lib /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/docs/_build/html/api/scala/docs"
        Execute "cd /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/docs/../scala-package
&& mv -f index.js /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/docs/_build/html/api/scala/docs"
        Execute "cd /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/docs/../scala-package
&& mv -f package.html /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/docs/_build/html/api/scala/docs"
        building [mo]: targets for 0 po files that are out of date
        building [html]: targets for 153 source files that are out of date
        updating environment: 153 added, 0 changed, 0 removed
        reading sources... [  5%] api/perl/symbol                                        
                                                       
        Exception occurred:
          File "/usr/local/lib/python3.5/dist-packages/recommonmark/states.py", line 134,
in run_role
            content=content)
        TypeError: 'NoneType' object is not callable
        The full traceback has been saved in /tmp/sphinx-err-n1z6zazm.log, if you want to
report the issue to the developers.
        Please also report this if it was a user error, so that a better error message can
be provided next time.
        A bug report can be filed in the tracker at <https://github.com/sphinx-doc/sphinx/issues>.
Thanks!
        Makefile:75: recipe for target 'html' failed
        make[1]: *** [html] Error 1
        make[1]: Leaving directory '/home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/docs'
        Makefile:482: recipe for target 'docs' failed
        make: *** [docs] Error 2
        
        On 4/21/18, 5:15 PM, "Thomas DELTEIL" <thomas.delteil1@gmail.com> wrote:
        
            @Anirudh, thanks for looking into it! However I do not understand what you
            mean by 'set as CPU and not GPU'? MXNet compiled with mkldnn and cuda is
            supposed to be able to work with both context no? There are other tutorials
            that are running successfully on both CPU and GPU context.
            
            @Da to reproduce:
            
            Download the source of 1.2.0.rc0 and extract it, cd into it.
            
            make docs
            make clean
            make -j $(nproc) USE_OPENCV=1 USE_BLAS=openblas USE_CUDA=1
            USE_CUDA_PATH=/usr/local/cuda USE_CUDNN=1 USE_MKLDNN=1
            export PYTHONPATH=$(pwd)/python
            cd tests/nightly
            python test_tutorial.py --tutorial onnx/super_resolution
            
            you can also start a jupyter notebook server and try to run
            docs/_build/html/tutorials/onnx/super_resolution.ipynb
            
            
            
            2018-04-21 15:08 GMT-07:00 Zheng, Da <dzzhen@amazon.com>:
            
            > @ThomasDelteil could you show me how to reproduce the problem? I'll take
            > it a look as well.
            >
            > Best,
            > Da
            >
            > Sent from my iPhone
            >
            > On Apr 21, 2018, at 1:12 PM, Anirudh Acharya <anirudhkrec@gmail.com
            > <mailto:anirudhkrec@gmail.com>> wrote:
            >
            > @ThomasDelteil that might be due to the fact that in the example, the
            > context is being set as CPU and not GPU.
            > But I will still take a look as soon as possible.
            >
            >
            > Regards
            > Anirudh
            >
            > On Sat, Apr 21, 2018 at 11:10 AM, Thomas DELTEIL <
            > thomas.delteil1@gmail.com<mailto:thomas.delteil1@gmail.com>>
            > wrote:
            >
            > *-0*
            >
            > compiled from source on GPU CUDA/CUDNN, tutorials run fine.
            >
            > However:
            > Compiled from source and adding USE_MKLDNN=1, the onnx/super_resolution
            > tutorial is crashing on this line:
            >
            > ```
            > from collections import namedtuple
            > Batch = namedtuple('Batch', ['data'])
            >
            > # forward on the provided data batch
            > mod.forward(Batch([mx.nd.array(test_image)]))
            > ```
            >
            > Stack trace returned 8 entries:
            > [bt] (0)
            > /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/python/
            > mxnet/../../lib/libmxnet.so(dmlc::StackTrace[abi:cxx11]()+0x5b)
            > [0x7feef615721b]
            > [bt] (1)
            > /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/python/
            > mxnet/../../lib/libmxnet.so(dmlc::LogMessageFatal::~
            > LogMessageFatal()+0x28)
            > [0x7feef6158258]
            > [bt] (2)
            > /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/python/
            > mxnet/../../lib/libmxnet.so(mxnet::engine::ThreadedEngine:
            > :ExecuteOprBlock(mxnet::RunContext,
            > mxnet::engine::OprBlock*)+0xfa9) [0x7feef8b1ad49]
            > [bt] (3)
            > /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/python/
            > mxnet/../../lib/libmxnet.so(std::_Function_handler<void
            > (std::shared_ptr<dmlc::ManualEvent>),
            > mxnet::engine::ThreadedEnginePerDevice::PushToExecute(mxnet::engine::
            > OprBlock*,
            > bool)::{lambda()#1}::operator()()
            > const::{lambda(std::shared_ptr<dmlc::ManualEvent>)#1}>::_
            > M_invoke(std::_Any_data
            > const&, std::shared_ptr<dmlc::ManualEvent>&&)+0xe2) [0x7feef8b30d82]
            > [bt] (4)
            > /home/ubuntu/apache-mxnet-src-1.2.0.rc0-incubating/python/
            > mxnet/../../lib/libmxnet.so(std::thread::_Impl<std::_Bind_
            > simple<std::function<void
            > (std::shared_ptr<dmlc::ManualEvent>)> (std::shared_ptr<dmlc::
            > ManualEvent>)>
            > ::_M_run()+0x4a) [0x7feef8b2af1a]
            > [bt] (5) /home/ubuntu/anaconda3/bin/../lib/libstdc++.so.6(+0xafc5c)
            > [0x7fef7cc79c5c]
            > [bt] (6) /lib/x86_64-linux-gnu/libpthread.so.0(+0x76ba) [0x7fef7dec36ba]
            > [bt] (7) /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7fef7dbf941d]
            >
            > Depending on how experimental we consider MKLDNN, that could be a *-1 *for
            > me.
            >
            > 2018-04-21 9:01 GMT-07:00 Jun Wu <wujun.nju@gmail.com<mailto:wu
            > jun.nju@gmail.com>>:
            >
            > +1
            >
            > Compiled from source. Ran the model quantization example. Both quantized
            > model generation and inference can run successfully.
            >
            > On Fri, Apr 20, 2018 at 5:14 PM, Indhu <indhubharathi@gmail.com<mailto:
            > indhubharathi@gmail.com>> wrote:
            >
            > +1
            >
            > Compiled from source on P3 instance. Tested the SSD example and some
            > Gluon
            > examples.
            >
            > On Wed, Apr 18, 2018, 7:40 PM Anirudh <anirudh2290@gmail.com<mailto:
            > anirudh2290@gmail.com>> wrote:
            >
            > Hi everyone,
            >
            > This is a vote to release Apache MXNet (incubating) version 1.2.0.
            > Voting
            > will start now (Wednesday, April 18th) and end at 7:40 PM PDT,
            > Saturday,
            > April 21st.
            >
            > Link to the release notes:
            >
            >
            > https://cwiki.apache.org/confluence/display/MXNET/
            > Apache+MXNet+%28incubating%29+1.2.0+Release+Notes
            >
            > Link to the release candidate 1.2.0.rc0:
            > https://github.com/apache/incubator-mxnet/releases/tag/1.2.0.rc0
            >
            > View this page, click on "Build from Source", and use the source code
            > obtained from the 1.2.0.rc0 tag:
            > https://mxnet.incubator.apache.org/install/index.html
            >
            > (Note: The README.md points to the 1.2.0 tag and does not work at the
            > moment.)
            >
            > Please remember to TEST first before voting accordingly:
            > +1 = approve
            > +0 = no opinion
            > -1 = disapprove (provide reason)
            >
            > Thanks,
            >
            > Anirudh
            >
            >
            >
            >
            >
            
        
        
    
    

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