Add AMD ROCm support (#557)

* Add rocm GPU topology

* First rocmon implementation

Basic implementation for montioring AMD GPUs with rocprofiler

* Move rocm call from addEventSet to setupCounters

* Include short_name in topology

* Implement more rocmon functions

This version does still not produce consistent results?

* Implement functions for rocmon marker api

* Add macros for rocmon marker api

* Add test for rocmon marker api

* Add ROCm SMI Backend to Rocmon

ROCm SMI provides additional counters and information to rocprofiler.

* Fix cut off event names

* Add temporary build instructions

* Fix markerfile format documentation

* Fix device id device index mixup

* Fix same variable name for rocmon and nvmon topology

Change rocmon topology variable name to avoid conflicts with nvmon and allow builds with both nvmon and rocmon.

* Integrate nvml library into nvmon

The NVIDIA Management Library (NVML) allows measuring of more statistics
like power usage. In addition to the existing events, events from the
NVML library can now be measured with LIKWID.

* Fix return types

nvml_getResult and nvml_getLastResult incorrectly returned int instead
of double.

* Fix gpu markers for nvml

Markerfile now contains average value for nvml events.

* Refactor result update

Put updating of result struct after measurement in dedicated function.

* Fix wrong function call

Called nvml_getResult instead of nvml_getLastResult in
nvmon_getLastResult.

* Simplify SMI event wrappers

* Fix filter for rocmon in Makefile

* Add timeline mode for GPUs using AppDaemon

* Fix appDaemon linker errors

* Add last value to output file

* Fix marker API for SMI events

Return accumulated values for ROCm SMI events, not accumulated
difference.

* Fix disparities between rocmon marker

Let user calculate average

* Adjust tests for benchmarking

* Fix dllink issues in rocmon_init

* Add macros for ROCM Debugging

* Add function to resolve GPUstr for ROCM

* Update ROCMon and ROCMon marker

* Changes to the likwid header

* Add ROCmon to likwid-perfctr

* Add example groups

* Rename symbol HSA_VEN_AMD_AQLPROFILE_LEGACY_PM4_PACKET_SIZE to avoid collision.

* adjusted for ROCm 5.4

* fixed AMD multi gpu issues

* Change rocm metrics.xml path to new directory spec

* Include likwid libs in LD_LIBRARY_PATH at runtime

* Add more groups for AMD GPUs

* Fix AMD rocm performance group metrics

* Adjust ROCm library path to new path structure

* Enable appDaemon to print timeline measurements to stderr

* Add GPU timeline support to likwid-perfctr

* Leave event_string_list empty if cpu perf group is not defined

* Fix typo in appDaemon environment variable

* Handle permission error for Rocm Marker API file

* Fix library environments for Rocm

* Modify conditions to allow for Rocm timeline support

* Fix make config to allow App Daemon Build for Rocm

* appDaemon: search for libraries in build directory

* Delete previous Smi events in rocmon_setupCounters

* Add power group to AMD GPU

* Set previous numSmiEvents to 0 in rocmon_setupCounters

* Fix amd_gpu POWER group

* Add likwid library to library path for nvidia GPUs

* Fix perfworks API for cuda versions >=11.2

* likwid-perfctr: Fix list events and counters for Nvidia GPUs

* Add backwards compatibility for ROCm metrics path

* access-daemon Makefile: Only include liblikwid in appDaemon target

* likwid-perfctr: remove version number from rocprofiler64 library

* rocmon: implement workaround for rocprofiler_iterate_info bug in ROCm 5.4.0

* likwid-perfctr: Use INSTALLED_LIBPREFIX for library path

* make more than 1 metric usable in timeline rocm

* fix wrong time readings in timeline mode

* update doxygen for AMD GPU support

* fix import order for PciDeviceId errors while compiling

---------

Co-authored-by: Marcel Marquardt <[email protected]>
Co-authored-by: Karlo Kraljic <[email protected]>
Co-authored-by: Thomas Roehl <[email protected]>
Co-authored-by: Sebastian Schnorbus <[email protected]>
Co-authored-by: Thomas Gruber <[email protected]>

Makefile

@@ -122,9 +122,15 @@ OBJ := $(filter-out $(BUILD_DIR)/loadDataARM.o,$(OBJ))
 endif
 ifneq ($(NVIDIA_INTERFACE), true)
 OBJ := $(filter-out $(BUILD_DIR)/nvmon.o,$(OBJ))
+OBJ := $(filter-out $(BUILD_DIR)/nvmon_nvml.o,$(OBJ))
 OBJ := $(filter-out $(BUILD_DIR)/topology_gpu.o,$(OBJ))
 OBJ := $(filter-out $(BUILD_DIR)/libnvctr.o,$(OBJ))
 endif
+ifneq ($(ROCM_INTERFACE), true)
+OBJ := $(filter-out $(BUILD_DIR)/rocmon.o,$(OBJ))
+OBJ := $(filter-out $(BUILD_DIR)/rocmon-marker.o,$(OBJ))
+OBJ := $(filter-out $(BUILD_DIR)/topology_gpu_rocm.o,$(OBJ))
+endif
 ifeq ($(COMPILER),GCCPOWER)
 OBJ := $(filter-out $(BUILD_DIR)/topology_cpuid.o,$(OBJ))
 OBJ := $(filter-out $(BUILD_DIR)/access_x86.o,$(OBJ))
@@ -195,6 +201,7 @@ $(L_APPS):  $(addprefix $(SRC_DIR)/applications/,$(addsuffix  .lua,$(L_APPS)))
 	@echo "===>  ADJUSTING  $@"
 	@if [ "$(ACCESSMODE)" = "direct" ]; then sed -i -e s/"access_mode = 1"/"access_mode = 0"/g $(SRC_DIR)/applications/$@.lua;fi
 	@sed -e s/'<INSTALLED_BINPREFIX>'/$(subst /,\\/,$(INSTALLED_BINPREFIX))/g \
+		-e s/'<INSTALLED_LIBPREFIX>'/$(subst /,\\/,$(INSTALLED_LIBPREFIX))/g \
 		-e s/'<INSTALLED_PREFIX>'/$(subst /,\\/,$(INSTALLED_PREFIX))/g \
 		-e s/'<VERSION>'/$(VERSION).$(RELEASE).$(MINOR)/g \
 		-e s/'<DATE>'/$(DATE)/g \
@@ -236,6 +243,7 @@ $(DYNAMIC_TARGET_LIB): $(BUILD_DIR) $(PERFMONHEADERS) $(OBJ) $(TARGET_HWLOC_LIB)
 	@ln -sf $(TARGET_LIB) $(TARGET_LIB).$(VERSION).$(RELEASE)
 	@sed -e s+'@PREFIX@'+$(INSTALLED_PREFIX)+g \
 		-e s+'@NVIDIA_INTERFACE@'+$(NVIDIA_INTERFACE)+g \
+		-e s+'@ROCM_INTERFACE@'+$(ROCM_INTERFACE)+g \
 		-e s+'@FORTRAN_INTERFACE@'+$(FORTRAN_INTERFACE)+g \
 		-e s+'@LIBPREFIX@'+$(INSTALLED_LIBPREFIX)+g \
 		-e s+'@BINPREFIX@'+$(INSTALLED_BINPREFIX)+g \
@@ -303,6 +311,11 @@ $(BUILD_DIR)/%.o:  %.c
 	$(Q)$(CC) -c $(DEBUG_FLAGS) $(CFLAGS) $(ANSI_CFLAGS) $(CPPFLAGS) $< -o $@
 	$(Q)$(CC) $(DEBUG_FLAGS) $(CPPFLAGS) -MT $(@:.d=.o) -MM  $< > $(BUILD_DIR)/$*.d
 
+$(BUILD_DIR)/rocmon_marker.o:  rocmon_marker.c
+	@echo "===>  COMPILE $@"
+	$(Q)$(CC) -c $(DEBUG_FLAGS) $(CFLAGS) $(ANSI_CFLAGS) $(CPPFLAGS) $< -o $@
+	$(Q)objcopy --redefine-sym HSA_VEN_AMD_AQLPROFILE_LEGACY_PM4_PACKET_SIZE=HSA_VEN_AMD_AQLPROFILE_LEGACY_PM4_PACKET_SIZE2 $@
+
 $(BUILD_DIR)/%.o:  %.cc
 	@echo "===>  COMPILE  $@"
 	$(Q)$(CXX) -c $(DEBUG_FLAGS) $(CXXFLAGS) $(CPPFLAGS) $< -o $@

README_ROCM.md

@@ -0,0 +1,28 @@
+## Build & Install
+
+```bash
+export ROCM_HOME=/opt/rocm
+make
+make install
+```
+
+## Test
+
+Build
+
+```bash
+cd test
+# make clean
+make test-topology-gpu-rocm
+make test-rocmon-triad
+make test-rocmon-triad-marker
+```
+
+Run
+
+```bash
+export LD_LIBRARY_PATH=/home/users/kraljic/likwid-rocmon/install/lib:/opt/rocm/hip/lib:/opt/rocm/hsa/lib:/opt/rocm/rocprofiler/lib:$LD_LIBRARY_PATH
+export ROCP_METRICS=/opt/rocm/rocprofiler/lib/metrics.xml # for rocmon test
+export HSA_TOOLS_LIB=librocprofiler64.so.1 # allows rocmon to intercept hsa commands
+./gpu-test-topology-gpu-rocm
+```

config.mk

@@ -30,6 +30,10 @@ INSTRUMENT_BENCH = true#NO SPACE
 # For configuring include paths, go to CUDA section
 NVIDIA_INTERFACE = false#NO SPACE
 
+# Build LIKWID with AMD GPU interface (ROCm)
+# For configuring include paths, go to ROCm section
+ROCM_INTERFACE = false#NO SPACE
+
 #################################################################
 #################################################################
 # Advanced configuration options                                #
@@ -172,3 +176,13 @@ CUPTIINCLUDE = $(CUDA_HOME)/extras/CUPTI/include
 # In order to hook into the CUDA application, the appDaemon is required
 # If you just want the NvMarkerAPI, you can keep it false
 BUILDAPPDAEMON=false
+
+# ROCm build data
+# LIKWID requires ROCm to be present only for compilation with
+# ROCM_INTERFACE=true. At runtime, the ROCm library have
+# to be in the LD_LIBRARY_PATH to dynamically load the libraries.
+# Include directory for ROCm headers
+HSAINCLUDE 			= $(ROCM_HOME)/include
+ROCPROFILERINCLUDE	        = $(ROCM_HOME)/include/rocprofiler
+HIPINCLUDE 			= $(ROCM_HOME)/include
+RSMIINCLUDE			= $(ROCM_HOME)/include

doc/applications/likwid-perfctr.md

@@ -56,7 +56,11 @@ custom event sets. The \ref Marker_API can measure mulitple named regions and th
 </TR>
 <TR>
   <TD>-W, --gpugroup &lt;arg&gt;</TD>
-  <TD>Specify which event string or performance group should be measured on the GPUs. Only if built with NVIDIA_INTERFACE=true.</TD>
+  <TD>Specify which event string or performance group should be measured on the Nvidia GPUs. Only if built with NVIDIA_INTERFACE=true.</TD>
+</TR>
+<TR>
+  <TD>-R &lt;arg&gt;</TD>
+  <TD>Specify which event string or performance group should be measured on the AMD GPUs. Only if built with ROCM_INTERFACE=true.</TD>
 </TR>
 <TR>
   <TD>-c &lt;arg&gt;</TD>
@@ -68,7 +72,11 @@ custom event sets. The \ref Marker_API can measure mulitple named regions and th
 </TR>
 <TR>
   <TD>-G &lt;arg&gt;</TD>
-  <TD>Defines the GPUs that should be measured<BR>You can use simple lists like 0,1,3 or ranges like 0-2. Only if built with NVIDIA_INTERFACE=true.</TD>
+  <TD>Defines the Nvidia GPUs that should be measured<BR>You can use simple lists like 0,1,3 or ranges like 0-2. Only if built with NVIDIA_INTERFACE=true.</TD>
+</TR>
+<TR>
+  <TD>-I &lt;arg&gt;</TD>
+  <TD>Defines the AMD GPUs that should be measured<BR>You can use simple lists like 0,1,3 or ranges like 0-2. Only if built with ROCM_INTERFACE=true.</TD>
 </TR>
 <TR>
   <TD>-H</TD>
@@ -274,6 +282,8 @@ The LIKWID package contains an example code: see \ref F-markerAPI-code.
 Since the calls to the LIKWID library are executed by your application, the runtime will raise and in specific circumstances, there are some other problems like the time measurement. You can execute <CODE>LIKWID_MARKER_THREADINIT</CODE> and <CODE>LIKWID_MARKER_START</CODE> inside the same parallel region but put a barrier between the calls to ensure that there is no big timing difference between the threads. The common way is to init LIKWID and the participating threads inside of an initialization routine, use only START and STOP in your code and close the Marker API in a finalization routine. Be aware that at the first start of a region, the thread-local hash table gets a new entry to store the measured values. If your code inside the region is short or you are executing the region only once, the overhead of creating the hash table entry can be significant compared to the execution of the region code. The overhead of creating the hash tables can be done in prior by using the <CODE>LIKWID_MARKER_REGISTER</CODE> function. It must be called by each thread and one time for each compute region. It is completely <I>optional</I>, <CODE>LIKWID_MARKER_START</CODE> performs the same operations.
 
 <H2>CUDA code</H2>
-With LIKWID 5.0 CUDA kernels can be measured. There is a special NvMarkerAPI for Nvidia GPUs. The usage is similar to the CPU MarkerAPI, just replace <CODE>LIKWID_MARKER_</CODE> with <CODE>LIKWID_NVMARKER_</CODE>. The two MarkerAPIs can be mixed.
+With LIKWID 5.0 CUDA kernels can be measured. There is a special NvMarkerAPI for Nvidia GPUs. The usage is similar to the CPU MarkerAPI, just replace <CODE>LIKWID_MARKER_</CODE> with <CODE>LIKWID_NVMARKER_</CODE>. All MarkerAPIs can be mixed.
 
+<H2>ROCm code</H2>
+ROCm kernels can be measured. There is a special RocmonMarkerAPI for AMD GPUs. The usage is similar to the CPU or Nvidia MarkerAPI, just replace <CODE>LIKWID_MARKER_</CODE> with <CODE>ROCMON_MARKER_</CODE>. All MarkerAPIs can be mixed.
 */

doc/likwid-doxygen.md

@@ -1,7 +1,7 @@
 /*! \mainpage LIKWID - Like I Knew What I Am Doing
 
 \section Introduction
-This is an effort to develop easy to use but yet powerful performance tools for the GNU Linux operating system. While the focus of LIKWID was on x86 processors, it is now ported to ARM and POWER processors. A backend for Nvidia GPUs is part of LIKWID with version 5.0.<BR>
+This is an effort to develop easy to use but yet powerful performance tools for the GNU Linux operating system. While the focus of LIKWID was on x86 processors, it is now ported to ARM and POWER processors. A backend for Nvidia GPUs is part of LIKWID with version 5.0. With the Rocmon backend, AMD GPUs can be monitored.<BR>
 
 LIKWID follows the philosophy:
 - Simple
@@ -16,7 +16,7 @@ LIKWID follows the philosophy:
 \section Tools LIKWID Tools
 - \ref likwid-topology : A tool to display the thread and cache topology on multicore/multisocket computers.
 - \ref likwid-pin : A tool to pin your threaded application without changing your code. Works for pthreads and OpenMP.
-- \ref likwid-perfctr : A tool to measure hardware performance counters on x86, ARM and POWER processors as well as Nvidia GPUs. It can be used as wrapper application without modifying the profiled code or with a marker API to measure only parts of the code.
+- \ref likwid-perfctr : A tool to measure hardware performance counters on x86, ARM and POWER processors as well as Nvidia/AMD GPUs. It can be used as wrapper application without modifying the profiled code or with a marker API to measure only parts of the code.
 - \ref likwid-powermeter : A tool for accessing RAPL counters and query Turbo mode steps on Intel processor. RAPL counters are also available in \ref likwid-perfctr.
 - \ref likwid-setFrequencies : A tool to print and manage the clock frequency of CPU hardware threads and the Uncore (Intel only).
 - \ref likwid-memsweeper : A tool to cleanup ccNUMA domains and LLC caches to get a clean environment for benchmarks.
@@ -133,6 +133,9 @@ Optionally, a global configuration file \ref likwid.cfg can be given to modify s
 - For compute capability < 7.0: support based on CUPTI Events API
 - For compute capability >= 7.0: support based on CUpti Profiling API
 
+\subsection Architectures_AMD AMD GPU architectures
+- ROCm 5.0 and higher capable GPUs
+
 \section Examples Example Codes
 Using the Likwid API:
 - \ref C-likwidAPI-code

doc/likwid-perfctr.1

@@ -1,6 +1,6 @@
 .TH LIKWID-PERFCTR 1 <DATE> likwid\-<VERSION>
 .SH NAME
-likwid-perfctr \- configure and read out hardware performance counters on x86, ARM and POWER CPUs and Nvidia GPUs
+likwid-perfctr \- configure and read out hardware performance counters on x86, ARM and POWER CPUs and Nvidia/AMD GPUs
 .SH SYNOPSIS
 .B likwid-perfctr
 .RB [\-vhHmaiefO]
@@ -34,6 +34,12 @@ or
 .IR gpu_performance_group
 or
 .IR gpu_performance_event_string (*) ]
+.RB [ \-I
+.IR gpu_list (**) ]
+.RB [ \-R
+.IR gpu_performance_group
+or
+.IR gpu_performance_event_string (**) ]
 .RB [ \-\-stats ]
 .SH DESCRIPTION
 .B likwid-perfctr
@@ -44,6 +50,7 @@ There are preconfigured performance groups with useful event sets and derived me
 events can be measured with custom event sets. The marker API can measure mulitple named regions and the
 results are accumulated over multiple region calls.
 .IR (*) Option only available if built with Nvidia GPU support
+.IR (**) Option only available if built with AMD GPU support
 
 .SH OPTIONS
 .TP
@@ -66,7 +73,7 @@ run in marker API mode
 print available performance groups for current processor, then exit.
 .TP
 .B \-\^e
-print available counters and performance events of current processor and (if available) Nvidia GPUs.
+print available counters and performance events of current processor and (if available) Nvidia or AMD GPUs.
 .TP
 .B \-\^o, \-\-\^output <filename>
 store all ouput to a file instead of stdout. For the filename the following placeholders are supported:
@@ -116,7 +123,7 @@ Force writing of registers even if they are in use.
 Print only events and corresponding counters matching <search_str>
 .TP
 .B \-\^G, \-\-\^gpus <gpu_list>
-specify a numerical list of GPU IDs. The list may contain multiple
+specify a numerical list of Nvidia GPU IDs. The list may contain multiple
 items, separated by comma, and ranges. For example 0,3,9-11.
 .TP
 .B \-\^W, \-\-\^gpugroup <gpu performance group> or <gpu performance event set string>
@@ -125,6 +132,16 @@ This can be one of the tags output with the -a flag in the GPU section.
 Also a custom event set can be specified by a comma separated list of events. Each event has the format
 eventId:GPUx (x=0,1,2,...). You can add as many events to the string until you hit an error.
 .TP
+.B \-\^I, \-\-\^gpus <gpu_list>
+specify a numerical list of AMD GPU IDs. The list may contain multiple
+items, separated by comma, and ranges. For example 0,3,9-11.
+.TP
+.B \-\^R, \-\-\^gpugroup <gpu performance group> or <gpu performance event set string>
+specify which performance group to measure on the specified AMD GPUs.
+This can be one of the tags output with the -a flag in the GPU section.
+Also a custom event set can be specified by a comma separated list of events. Each event has the format
+eventId:GPUx (x=0,1,2,...). You can add as many events to the string until you hit an error.
+.TP
 .B \-\-\^stats
 Always print statistics table
 

doc/likwid-topology.1

@@ -1,6 +1,6 @@
 .TH LIKWID-TOPOLOGY 1 <DATE> likwid\-<VERSION>
 .SH NAME
-likwid-topology \- print thread, cache, NUMA and Nvidia GPU topology
+likwid-topology \- print thread, cache, NUMA and Nvidia/AMD GPU topology
 .SH SYNOPSIS
 .B likwid-topology
 .RB [\-hvgcCG]
@@ -11,12 +11,12 @@ likwid-topology \- print thread, cache, NUMA and Nvidia GPU topology
 .SH DESCRIPTION
 .B likwid-topology
 is a command line application to print the thread and cache
-topology on multicore x86, ARM and POWER processors and Nvidia GPUs.
+topology on multicore x86, ARM and POWER processors and Nvidia/AMD GPUs.
 Used with mono spaced fonts it can draw the processor topology of a
 machine in ASCII art. Beyond topology likwid-topology determines the
 clock of a processor and prints detailed informations about the caches hierarchy.
 When compiled with NVIDIA_INTERFACE=true in config.mk and the CUDA/CUPTI library reachable
-at runtime, likwid-topology prints information about the Nvidia GPUs in the system.
+at runtime, likwid-topology prints information about the Nvidia GPUs in the system. The same is possible for AMD GPUs with ROCM_INTERFACE=TRUE and the required ROCm libraries.
 .SH OPTIONS
 .TP
 .B \-h, \-\-\^help
@@ -38,7 +38,7 @@ prints detailed information about cache hierarchy
 measures and output the processor clock. This involves a longer run time of likwid-topology.
 .TP
 .B \-G, \-\-\^gpus
-prints detailed information about the Nvidia GPUs in the system (if compiled with Nvidia support)
+prints detailed information about the Nvidia/AMD GPUs in the system (if compiled with Nvidia or AMD support)
 .TP
 .B \-o, \-\-\^output <file>
 write the output to file instead of stdout.

groups/amd_gpu/GDS.txt

@@ -0,0 +1,13 @@
+SHORT GDS Instructions
+
+EVENTSET
+ROCM0 ROCP_SQ_INSTS_GDS
+ROCM1 ROCP_SQ_WAVES
+
+METRICS
+GPU GDS rw insts per work-item ROCM0/ROCM1
+
+LONG
+--
+The average number of GDS read or GDS write instructions executed 
+per work item (affected by flow control).

groups/amd_gpu/MEM.txt

@@ -0,0 +1,16 @@
+SHORT Memory utilization
+
+EVENTSET
+ROCM0 ROCP_TA_TA_BUSY
+ROCM1 ROCP_GRBM_GUI_ACTIVE
+ROCM2 ROCP_SE_NUM
+
+METRICS
+GPU memory utilization 100*max(ROCM0,16)/ROCM1/ROCM2
+
+LONG
+--
+The percentage of GPUTime the memory unit is active. The result includes 
+the stall time (MemUnitStalled). This is measured with all extra fetches 
+and writes and any cache or memory effects taken into account. 
+Value range: 0% to 100% (fetch-bound).

groups/amd_gpu/PCI.txt

@@ -0,0 +1,18 @@
+SHORT PCI Transfers
+
+EVENTSET
+ROCM0 RSMI_PCI_THROUGHPUT_SENT
+ROCM1 RSMI_PCI_THROUGHPUT_RECEIVED
+
+
+METRICS
+Runtime time
+PCI sent ROCM0
+PCI received ROCM1
+PCI send bandwidth 1E-6*ROCM0/time
+PCI recv bandwidth 1E-6*ROCM1/time
+
+LONG
+--
+Currently not usable since the RSMI_PCI_THROUGHPUT_* events require
+one second per call, so 2 seconds for both of them.

groups/amd_gpu/POWER.txt

@@ -0,0 +1,17 @@
+SHORT Power, temperature and voltage
+
+EVENTSET
+ROCM0 RSMI_POWER_AVE[0]
+ROCM1 RSMI_TEMP_EDGE
+ROCM2 RSMI_VOLT_VDDGFX
+
+
+METRICS
+Power average 1E-6*ROCM0
+Edge temperature 1E-3*ROCM1
+Voltage 1E-3*ROCM2
+
+LONG
+--
+Gets the current average power consumption in watts, the
+temperature in celsius and the voltage in volts.

groups/amd_gpu/SALU.txt

@@ -0,0 +1,13 @@
+SHORT SALU Instructions
+
+EVENTSET
+ROCM0 ROCP_SQ_INSTS_SALU
+ROCM1 ROCP_SQ_WAVES
+
+METRICS
+GPU SALU insts per work-item ROCM0/ROCM1
+
+LONG
+--
+The average number of scalar ALU instructions executed per work-item 
+(affected by flow control).

groups/amd_gpu/SFETCH.txt

@@ -0,0 +1,13 @@
+SHORT SFetch Instructions
+
+EVENTSET
+ROCM0 ROCP_SQ_INSTS_SMEM
+ROCM1 ROCP_SQ_WAVES
+
+METRICS
+GPU SFETCH insts per work-item ROCM0/ROCM1
+
+LONG
+--
+The average number of scalar fetch instructions from the video memory 
+executed per work-item (affected by flow control).

groups/amd_gpu/STALLED.txt

@@ -0,0 +1,17 @@
+SHORT ALU stalled by LDS
+
+EVENTSET
+ROCM0 ROCP_SQ_WAIT_INST_LDS
+ROCM1 ROCP_SQ_WAVES
+ROCM2 ROCP_GRBM_GUI_ACTIVE
+
+METRICS
+GPU ALD stalled 100*ROCM0*4/ROCM1/ROCM2
+
+LONG
+--
+The percentage of GPUTime ALU units are stalled by the LDS input queue 
+being full or the output queue being not ready. If there are LDS bank 
+conflicts, reduce them. Otherwise, try reducing the number of LDS 
+accesses if possible. 
+Value range: 0% (optimal) to 100% (bad).

groups/amd_gpu/UTIL.txt

@@ -0,0 +1,16 @@
+SHORT GPU utilization
+
+EVENTSET
+ROCM0 ROCP_GRBM_COUNT
+ROCM1 ROCP_GRBM_GUI_ACTIVE
+
+
+METRICS
+GPU utilization 100*ROCM1/ROCM0
+
+
+LONG
+--
+This group reassembles the 'GPUBusy' metric provided by RocProfiler.
+We should add, that we can select the GPUBusy metric directly and the
+calculations are done internally in case the metric formula changes.