[HOTFIX][WORKAROUND] #1207 ported to develop: W/A for issue 1206. Disable ConvHipImplicitGemmBwdDataV4R1Xdlops by default

[atamazov]

This is W/A for #1206: #1207 ported for develop to unblock MIOpen promotion pipeline.

[atamazov]

By @junliume :

@atamazov @JehandadKhan
I am a little worried about the following failure (restarted to check if it is run to run issue):

src/ocl/convolutionocl.cpp:1211: Backward Data Convolution cannot be executed due to incorrect param

[2021-10-05T11:25:32.531Z] 63/81 Test #78: test_regression_half_mi100 .................***Failed  Error regular expression found in output. Regex=[FAILED]  5.64 sec
[2021-10-05T11:25:32.531Z] [  0%] Built target sqlite_memvfs
[2021-10-05T11:25:32.531Z] [  2%] Built target addkernels
[2021-10-05T11:25:32.531Z] [ 97%] Built target MIOpen
[2021-10-05T11:25:32.531Z] [100%] Built target test_conv2d
[2021-10-05T11:25:32.531Z] Scanning dependencies of target test_regression_half_mi100
[2021-10-05T11:25:32.531Z] /var/jenkins/workspace/MLLibs_MIOpen_wa-issue-1206/build/bin/test_conv2d --half --cmode conv --pmode default --group-count 1 --disable-forward --disable-backward-weights --input 128 24 14 14 --weights 64 24 5 5 --batch_size 128 --input_channels 24 --output_channels 64 --spatial_dim_elements 14 14 --filter_dims 3 3 --pads_strides_dilations 2 2 1 1 1 1 --trans_output_pads 0 0 --in_layout NCHW --fil_layout NCHW --out_layout NCHW 
[2021-10-05T11:25:32.531Z] /var/jenkins/workspace/MLLibs_MIOpen_wa-issue-1206/build/bin/test_conv2d --half --cmode conv --pmode default --group-count 1 --disable-forward --disable-backward-weights --input 128 24 14 14 --weights 64 24 5 5 --batch_size 128 --input_channels 24 --output_channels 64 --spatial_dim_elements 14 14 --filter_dims 3 3 --pads_strides_dilations 2 2 1 1 1 1 --trans_output_pads 0 0 --in_layout NCHW --fil_layout NCHW --out_layout NCHW 
[2021-10-05T11:25:32.531Z] FAILED: /var/jenkins/workspace/MLLibs_MIOpen_wa-issue-1206/src/ocl/convolutionocl.cpp:1211: Backward Data Convolution cannot be executed due to incorrect params

[atamazov]

@junliume It may worth limiting the W/A to FP32 only. I will check and create another PR, if necessary.

[junliume]

@junliume It may worth limiting the W/A to FP32 only. I will check and create another PR, if necessary.

Yes, I think so. What does perf_db.empty() mean? The config does not have a "fall-back" kernel to run?

if(perf_db.empty())
        MIOPEN_THROW(miopenStatusUnknownError,
                     "Backward Data Convolution cannot be executed due to incorrect params");

[atamazov]

@junliume Some context is missing, but I IIRC this is the case when Find() was unable to find any suitable convolution. The naming of perf_db is misleading; this object is a collection of found solutions to be written into find-db after Find().