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CS5820 – Solved

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Assignment 3: GPU Tuning

(1) Write a program to print device details like serial number, UUID, Board number and PCI address etc.
Solution:
/*
*
* SPDX-License-Identifier: MIT
*
*/
#include <level_zero/zes_api.h>
#include <algorithm>
#include <fstream>
#include <getopt.h>
#include <iostream>
#include <map>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h> #include <vector> bool verbose = true;
std::string getErrorString(ze_result_t error)
{
static const std::map<ze_result_t, std::string> mgetErrorString{
{ZE_RESULT_NOT_READY, “ZE_RESULT_NOT_READY”},
{ZE_RESULT_ERROR_DEVICE_LOST, “ZE_RESULT_ERROR_DEVICE_LOST”},
{ZE_RESULT_ERROR_OUT_OF_HOST_MEMORY, ”
ZE_RESULT_ERROR_OUT_OF_HOST_MEMORY”},
{ZE_RESULT_ERROR_OUT_OF_DEVICE_MEMORY, ”
ZE_RESULT_ERROR_OUT_OF_DEVICE_MEMORY”},
{ZE_RESULT_ERROR_MODULE_BUILD_FAILURE, ”
ZE_RESULT_ERROR_MODULE_BUILD_FAILURE”},
{ZE_RESULT_ERROR_MODULE_LINK_FAILURE, ” ZE_RESULT_ERROR_MODULE_LINK_FAILURE”},
{ZE_RESULT_ERROR_INSUFFICIENT_PERMISSIONS, ” ZE_RESULT_ERROR_INSUFFICIENT_PERMISSIONS”},
{ZE_RESULT_ERROR_NOT_AVAILABLE, “ZE_RESULT_ERROR_NOT_AVAILABLE”},
{ZE_RESULT_ERROR_DEPENDENCY_UNAVAILABLE, ” ZE_RESULT_ERROR_DEPENDENCY_UNAVAILABLE”},
{ZE_RESULT_ERROR_UNINITIALIZED, “ZE_RESULT_ERROR_UNINITIALIZED”},
{ZE_RESULT_ERROR_UNSUPPORTED_VERSION, ”
ZE_RESULT_ERROR_UNSUPPORTED_VERSION”},
{ZE_RESULT_ERROR_UNSUPPORTED_FEATURE, ”
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ZE_RESULT_ERROR_UNSUPPORTED_FEATURE”},
{ZE_RESULT_ERROR_INVALID_ARGUMENT, ”
ZE_RESULT_ERROR_INVALID_ARGUMENT”},
{ZE_RESULT_ERROR_INVALID_NULL_HANDLE, ”
ZE_RESULT_ERROR_INVALID_NULL_HANDLE”},
{ZE_RESULT_ERROR_HANDLE_OBJECT_IN_USE, ”
ZE_RESULT_ERROR_HANDLE_OBJECT_IN_USE”},
{ZE_RESULT_ERROR_INVALID_NULL_POINTER, ” ZE_RESULT_ERROR_INVALID_NULL_POINTER”},
{ZE_RESULT_ERROR_INVALID_SIZE, “ZE_RESULT_ERROR_INVALID_SIZE”},
{ZE_RESULT_ERROR_UNSUPPORTED_SIZE, ” ZE_RESULT_ERROR_UNSUPPORTED_SIZE”},
{ZE_RESULT_ERROR_UNSUPPORTED_ALIGNMENT, ” ZE_RESULT_ERROR_UNSUPPORTED_ALIGNMENT”},
{ZE_RESULT_ERROR_INVALID_SYNCHRONIZATION_OBJECT, ” ZE_RESULT_ERROR_INVALID_SYNCHRONIZATION_OBJECT”},
{ZE_RESULT_ERROR_INVALID_ENUMERATION, ” ZE_RESULT_ERROR_INVALID_ENUMERATION”},
{ZE_RESULT_ERROR_UNSUPPORTED_ENUMERATION, ”
ZE_RESULT_ERROR_UNSUPPORTED_ENUMERATION”},
{ZE_RESULT_ERROR_UNSUPPORTED_IMAGE_FORMAT, ”
ZE_RESULT_ERROR_UNSUPPORTED_IMAGE_FORMAT”},
{ZE_RESULT_ERROR_INVALID_NATIVE_BINARY, ”
ZE_RESULT_ERROR_INVALID_NATIVE_BINARY”},
{ZE_RESULT_ERROR_INVALID_GLOBAL_NAME, ”
ZE_RESULT_ERROR_INVALID_GLOBAL_NAME”},
{ZE_RESULT_ERROR_INVALID_KERNEL_NAME, ”
ZE_RESULT_ERROR_INVALID_KERNEL_NAME”},
{ZE_RESULT_ERROR_INVALID_FUNCTION_NAME, ” ZE_RESULT_ERROR_INVALID_FUNCTION_NAME”},
{ZE_RESULT_ERROR_INVALID_GROUP_SIZE_DIMENSION, ”
ZE_RESULT_ERROR_INVALID_GROUP_SIZE_DIMENSION”},
{ZE_RESULT_ERROR_INVALID_GLOBAL_WIDTH_DIMENSION, ”
ZE_RESULT_ERROR_INVALID_GLOBAL_WIDTH_DIMENSION”},
{ZE_RESULT_ERROR_INVALID_KERNEL_ARGUMENT_INDEX, ”
ZE_RESULT_ERROR_INVALID_KERNEL_ARGUMENT_INDEX”},
{ZE_RESULT_ERROR_INVALID_KERNEL_ARGUMENT_SIZE, ”
ZE_RESULT_ERROR_INVALID_KERNEL_ARGUMENT_SIZE”},
{ZE_RESULT_ERROR_INVALID_KERNEL_ATTRIBUTE_VALUE, ” ZE_RESULT_ERROR_INVALID_KERNEL_ATTRIBUTE_VALUE”},
{ZE_RESULT_ERROR_INVALID_MODULE_UNLINKED, ”
ZE_RESULT_ERROR_INVALID_MODULE_UNLINKED”},
{ZE_RESULT_ERROR_INVALID_COMMAND_LIST_TYPE, ” ZE_RESULT_ERROR_INVALID_COMMAND_LIST_TYPE”},
{ZE_RESULT_ERROR_OVERLAPPING_REGIONS, ” ZE_RESULT_ERROR_OVERLAPPING_REGIONS”},
{ZE_RESULT_ERROR_UNKNOWN, “ZE_RESULT_ERROR_UNKNOWN”}}; auto i = mgetErrorString.find(error); if (i == mgetErrorString.end()) return “ZE_RESULT_ERROR_UNKNOWN”;
else return mgetErrorString.at(error);
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}
#define VALIDATECALL(myZeCall) do
{ ze_result_t r = myZeCall; if (r != ZE_RESULT_SUCCESS)
{ std::cout << getErrorString(r)
<< ” returned by ”
<< #myZeCall << “: ”
<< __FUNCTION__ << “: ”
<< __LINE__ << ” “;
}
} while (0);
void getDeviceHandles(ze_driver_handle_t &driverHandle, std::vector< ze_device_handle_t> &devices, int argc, char *argv[])
{
VALIDATECALL(zeInit(ZE_INIT_FLAG_GPU_ONLY));
uint32_t driverCount = 0;
VALIDATECALL(zeDriverGet(&driverCount, nullptr)); if (driverCount == 0)
{
std::cout << “Error could not retrieve driver” << std::endl; std::terminate();
}
VALIDATECALL(zeDriverGet(&driverCount, &driverHandle));
uint32_t deviceCount = 0;
VALIDATECALL(zeDeviceGet(driverHandle, &deviceCount, nullptr)); if (deviceCount == 0)
{
std::cout << “Error could not retrieve device” << std::endl; std::terminate();
} devices.resize(deviceCount);
VALIDATECALL(zeDeviceGet(driverHandle, &deviceCount, devices.data()));
ze_device_properties_t deviceProperties = {
ZE_STRUCTURE_TYPE_DEVICE_PROPERTIES}; for (const auto &device : devices)
{
VALIDATECALL(zeDeviceGetProperties(device, &deviceProperties));
if (verbose)
{
std::cout << “Device Name = ” << deviceProperties.name << std
::endl; std::cout << “deviceProperties.flags = ” << deviceProperties.
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flags << “on device” << device << std::endl;
}
}
}
bool validateGetenv(const char *name)
{
const char *env = getenv(name); if ((nullptr == env) || (0 == strcmp(“0”, env))) return false;
return (0 == strcmp(“1”, env));
}
int main(int argc, char *argv[])
{ std::vector<ze_device_handle_t> devices; std::vector<ze_device_handle_t> devices; std::vector<ze_device_handle_t> devices; ze_driver_handle_t driver;
if (!validateGetenv(“ZES_ENABLE_SYSMAN”))
{
std::cout << “Must set environment variable ZES_ENABLE_SYSMAN=1″
<< std::endl; exit(0);
}
getDeviceHandles(driver, devices, argc, argv);
/*Using the structures zes_device_properties_t and zes_pci_properties_t to get device properties and pci addresses respectively */
zes_device_properties_t devProps; if (zesDeviceGetProperties(devices[0], &devProps) == ZE_RESULT_SUCCESS)
{
printf(” UUID: %s “, devProps.core.uuid.id) printf(” #subdevices: %u “, devProps.numSubdevices) printf(” brand: %s “, devProps.brandName) printf(” model: %s “, devProps.modelName)
} zes_pci_properties_t pciProps; if (zesDevicePciGetProperties(devices[0], &pciProps) ==
ZE_RESULT_SUCCESS)
printf(” PCI address: %04u:%02u:%02u.%u”, pciProps.address.domain,
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155 pciProps.address.bus,
156 pciProps.address.device,
157 pciProps.address.function);
158 }
(2) Write a program to Write a daemon/application who keep monitoring temperature and if any temperature changes just print to report change in temperature Solution:
*
*
* SPDX-License-Identifier: MIT
*
*/
#include <level_zero/zes_api.h>
#include <algorithm>
#include <fstream>
#include <getopt.h>
#include <iostream>
#include <map>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h> #include <vector> bool verbose = true;
std::string getErrorString(ze_result_t error)
{
static const std::map<ze_result_t, std::string> mgetErrorString{
{ZE_RESULT_NOT_READY, “ZE_RESULT_NOT_READY”},
{ZE_RESULT_ERROR_DEVICE_LOST, “ZE_RESULT_ERROR_DEVICE_LOST”},
{ZE_RESULT_ERROR_OUT_OF_HOST_MEMORY, ”
ZE_RESULT_ERROR_OUT_OF_HOST_MEMORY”},
{ZE_RESULT_ERROR_OUT_OF_DEVICE_MEMORY, ”
ZE_RESULT_ERROR_OUT_OF_DEVICE_MEMORY”},
{ZE_RESULT_ERROR_MODULE_BUILD_FAILURE, ”
ZE_RESULT_ERROR_MODULE_BUILD_FAILURE”},
{ZE_RESULT_ERROR_MODULE_LINK_FAILURE, ” ZE_RESULT_ERROR_MODULE_LINK_FAILURE”},
{ZE_RESULT_ERROR_INSUFFICIENT_PERMISSIONS, ” ZE_RESULT_ERROR_INSUFFICIENT_PERMISSIONS”},
{ZE_RESULT_ERROR_NOT_AVAILABLE, “ZE_RESULT_ERROR_NOT_AVAILABLE”},
{ZE_RESULT_ERROR_DEPENDENCY_UNAVAILABLE, ” ZE_RESULT_ERROR_DEPENDENCY_UNAVAILABLE”},
{ZE_RESULT_ERROR_UNINITIALIZED, “ZE_RESULT_ERROR_UNINITIALIZED”},
{ZE_RESULT_ERROR_UNSUPPORTED_VERSION, ”
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ZE_RESULT_ERROR_UNSUPPORTED_VERSION”},
36 {ZE_RESULT_ERROR_UNSUPPORTED_FEATURE, ”
ZE_RESULT_ERROR_UNSUPPORTED_FEATURE”},
37 {ZE_RESULT_ERROR_INVALID_ARGUMENT, ”
ZE_RESULT_ERROR_INVALID_ARGUMENT”},
38 {ZE_RESULT_ERROR_INVALID_NULL_HANDLE, ”
ZE_RESULT_ERROR_INVALID_NULL_HANDLE”},
39 {ZE_RESULT_ERROR_HANDLE_OBJECT_IN_USE, ”
ZE_RESULT_ERROR_HANDLE_OBJECT_IN_USE”},
{ZE_RESULT_ERROR_INVALID_NULL_POINTER, ” ZE_RESULT_ERROR_INVALID_NULL_POINTER”},
{ZE_RESULT_ERROR_INVALID_SIZE, “ZE_RESULT_ERROR_INVALID_SIZE”},
{ZE_RESULT_ERROR_UNSUPPORTED_SIZE, ” ZE_RESULT_ERROR_UNSUPPORTED_SIZE”},
{ZE_RESULT_ERROR_UNSUPPORTED_ALIGNMENT, ” ZE_RESULT_ERROR_UNSUPPORTED_ALIGNMENT”},
{ZE_RESULT_ERROR_INVALID_SYNCHRONIZATION_OBJECT, ” ZE_RESULT_ERROR_INVALID_SYNCHRONIZATION_OBJECT”},
{ZE_RESULT_ERROR_INVALID_ENUMERATION, ” ZE_RESULT_ERROR_INVALID_ENUMERATION”},
{ZE_RESULT_ERROR_UNSUPPORTED_ENUMERATION, ”
ZE_RESULT_ERROR_UNSUPPORTED_ENUMERATION”},
{ZE_RESULT_ERROR_UNSUPPORTED_IMAGE_FORMAT, ”
ZE_RESULT_ERROR_UNSUPPORTED_IMAGE_FORMAT”},
{ZE_RESULT_ERROR_INVALID_NATIVE_BINARY, ”
ZE_RESULT_ERROR_INVALID_NATIVE_BINARY”},
{ZE_RESULT_ERROR_INVALID_GLOBAL_NAME, ”
ZE_RESULT_ERROR_INVALID_GLOBAL_NAME”},
{ZE_RESULT_ERROR_INVALID_KERNEL_NAME, ”
ZE_RESULT_ERROR_INVALID_KERNEL_NAME”},
{ZE_RESULT_ERROR_INVALID_FUNCTION_NAME, ” ZE_RESULT_ERROR_INVALID_FUNCTION_NAME”},
{ZE_RESULT_ERROR_INVALID_GROUP_SIZE_DIMENSION, ”
ZE_RESULT_ERROR_INVALID_GROUP_SIZE_DIMENSION”},
{ZE_RESULT_ERROR_INVALID_GLOBAL_WIDTH_DIMENSION, ”
ZE_RESULT_ERROR_INVALID_GLOBAL_WIDTH_DIMENSION”},
{ZE_RESULT_ERROR_INVALID_KERNEL_ARGUMENT_INDEX, ”
ZE_RESULT_ERROR_INVALID_KERNEL_ARGUMENT_INDEX”},
{ZE_RESULT_ERROR_INVALID_KERNEL_ARGUMENT_SIZE, ”
ZE_RESULT_ERROR_INVALID_KERNEL_ARGUMENT_SIZE”},
{ZE_RESULT_ERROR_INVALID_KERNEL_ATTRIBUTE_VALUE, ” ZE_RESULT_ERROR_INVALID_KERNEL_ATTRIBUTE_VALUE”},
{ZE_RESULT_ERROR_INVALID_MODULE_UNLINKED, ”
ZE_RESULT_ERROR_INVALID_MODULE_UNLINKED”},
{ZE_RESULT_ERROR_INVALID_COMMAND_LIST_TYPE, ” ZE_RESULT_ERROR_INVALID_COMMAND_LIST_TYPE”},
{ZE_RESULT_ERROR_OVERLAPPING_REGIONS, ” ZE_RESULT_ERROR_OVERLAPPING_REGIONS”},
{ZE_RESULT_ERROR_UNKNOWN, “ZE_RESULT_ERROR_UNKNOWN”}}; auto i = mgetErrorString.find(error); if (i == mgetErrorString.end()) return “ZE_RESULT_ERROR_UNKNOWN”;
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64 else
65 return mgetErrorString.at(error);
66 }
67
68 #define VALIDATECALL(myZeCall)
69 do
70 {

71 ze_result_t r = myZeCall;
if (r != ZE_RESULT_SUCCESS)
{ std::cout << getErrorString(r)
<< ” returned by ”
<< #myZeCall << “: ”
<< __FUNCTION__ << “: ”
<< __LINE__ << ” “;
}
} while (0);
void getDeviceHandles(ze_driver_handle_t &driverHandle, std::vector< ze_device_handle_t> &devices, int argc, char *argv[])
{
VALIDATECALL(zeInit(ZE_INIT_FLAG_GPU_ONLY));
uint32_t driverCount = 0;
VALIDATECALL(zeDriverGet(&driverCount, nullptr)); if (driverCount == 0)
{
std::cout << “Error could not retrieve driver” << std::endl; std::terminate();
}
VALIDATECALL(zeDriverGet(&driverCount, &driverHandle));
uint32_t deviceCount = 0;
VALIDATECALL(zeDeviceGet(driverHandle, &deviceCount, nullptr)); if (deviceCount == 0)
{
std::cout << “Error could not retrieve device” << std::endl; std::terminate();
} devices.resize(deviceCount);
VALIDATECALL(zeDeviceGet(driverHandle, &deviceCount, devices.data()));
ze_device_properties_t deviceProperties = {
ZE_STRUCTURE_TYPE_DEVICE_PROPERTIES}; for (const auto &device : devices)
{
VALIDATECALL(zeDeviceGetProperties(device, &deviceProperties));
if (verbose)
{
std::cout << “Device Name = ” << deviceProperties.name << std
::endl; std::cout << “deviceProperties.flags = ” << deviceProperties. flags << “on device” << device << std::endl;
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115 }
116 }
117 }
118 //After getting the device handles
119 //Let us use this Temperature_Monitor function using the mentioned 3 APIs
to complete the task
void Temperature_Monitor(std::vector<ze_device_handle_t> &devices)
{
std::cout << std::endl;
uint32_t numSens = 0;
//We use the zesDeviceEnumTemperatureSensors API to get handle of the temperature sensors
VALIDATECALL(zesDeviceEnumTemperatureSensors(devices, &numSens, NULL))
;
if (numSens == 0)
{
std::cout << “Error: Could not get handle of temp. sensors” << std ::endl;
}
//We use the Temp. properties and state api structures here where we check the properties and monitor the state
zes_temp_properties_t temp; for (const auto &temp_properties)
{
float t_i = 0; float t_p = 0;
VALIDATECALL(zesTemperatureGetProperties(temp, &temp_properties)); if (verbose)
{
std::cout << “maxTemp “<< temp_properties.maxTemperature;
//maxTemperature is the only double value supported, gives output in deg. Celcius
std::cout<<std::endl;
}
VALIDATECALL(zesTemperatureGetState(temp, &t_i)); if (verbose)
{
std::cout << “instantaneous_temp” << t_i << std::endl;
}
float t_d = t_p – t_i; if (verbose)
{
std::cout << 10 << std::endl; //Temp Data freq.
}
t_d = 0; while(1)
{
VALIDATECALL(zesTemperatureGetState(temp, &t_p)); //Ongoing loop for continuous checking and monitoring
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160 }
161 }
162 }
163 bool validateGetenv(const char *name)
{ const char *env = getenv(name); if ((nullptr == env) || (0 == strcmp(“0”, env))) return false;
return (0 == strcmp(“1”, env));
} int main(int argc, char *argv[])
{ std::vector<ze_device_handle_t> devices; ze_driver_handle_t driver;
if (!validateGetenv(“ZES_ENABLE_SYSMAN”))
{
std::cout << “Must set environment variable ZES_ENABLE_SYSMAN=1”
} << std::endl; exit(0);
}
getDeviceHandles(driver, devices, argc, argv);
Temperature_Monitor(devices[0]);
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(3) Write a program to Read the available frequency clocks and current frequency. Try to set maximum frequency range through API and Now read back what is current frequency set
Solution:
/*
*
* SPDX-License-Identifier: MIT
*
*/
#include <level_zero/zes_api.h>
#include <algorithm>
#include <fstream>
#include <getopt.h>
#include <iostream>
#include <map>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h> #include <vector> bool verbose = true;
std::string getErrorString(ze_result_t error)
{
static const std::map<ze_result_t, std::string> mgetErrorString{
{ZE_RESULT_NOT_READY, “ZE_RESULT_NOT_READY”},
{ZE_RESULT_ERROR_DEVICE_LOST, “ZE_RESULT_ERROR_DEVICE_LOST”},
{ZE_RESULT_ERROR_OUT_OF_HOST_MEMORY, ”
ZE_RESULT_ERROR_OUT_OF_HOST_MEMORY”},
{ZE_RESULT_ERROR_OUT_OF_DEVICE_MEMORY, ”
ZE_RESULT_ERROR_OUT_OF_DEVICE_MEMORY”},
{ZE_RESULT_ERROR_MODULE_BUILD_FAILURE, ”
ZE_RESULT_ERROR_MODULE_BUILD_FAILURE”},
{ZE_RESULT_ERROR_MODULE_LINK_FAILURE, ” ZE_RESULT_ERROR_MODULE_LINK_FAILURE”},
{ZE_RESULT_ERROR_INSUFFICIENT_PERMISSIONS, ” ZE_RESULT_ERROR_INSUFFICIENT_PERMISSIONS”},
{ZE_RESULT_ERROR_NOT_AVAILABLE, “ZE_RESULT_ERROR_NOT_AVAILABLE”},
{ZE_RESULT_ERROR_DEPENDENCY_UNAVAILABLE, ” ZE_RESULT_ERROR_DEPENDENCY_UNAVAILABLE”},
{ZE_RESULT_ERROR_UNINITIALIZED, “ZE_RESULT_ERROR_UNINITIALIZED”},
{ZE_RESULT_ERROR_UNSUPPORTED_VERSION, ”
ZE_RESULT_ERROR_UNSUPPORTED_VERSION”},
{ZE_RESULT_ERROR_UNSUPPORTED_FEATURE, ”
ZE_RESULT_ERROR_UNSUPPORTED_FEATURE”},
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37 {ZE_RESULT_ERROR_INVALID_ARGUMENT, ”
ZE_RESULT_ERROR_INVALID_ARGUMENT”},
38 {ZE_RESULT_ERROR_INVALID_NULL_HANDLE, ” ZE_RESULT_ERROR_INVALID_NULL_HANDLE”},
39 {ZE_RESULT_ERROR_HANDLE_OBJECT_IN_USE, ”
ZE_RESULT_ERROR_HANDLE_OBJECT_IN_USE”},
{ZE_RESULT_ERROR_INVALID_NULL_POINTER, ” ZE_RESULT_ERROR_INVALID_NULL_POINTER”},
{ZE_RESULT_ERROR_INVALID_SIZE, “ZE_RESULT_ERROR_INVALID_SIZE”},
{ZE_RESULT_ERROR_UNSUPPORTED_SIZE, ” ZE_RESULT_ERROR_UNSUPPORTED_SIZE”},
{ZE_RESULT_ERROR_UNSUPPORTED_ALIGNMENT, ” ZE_RESULT_ERROR_UNSUPPORTED_ALIGNMENT”},
{ZE_RESULT_ERROR_INVALID_SYNCHRONIZATION_OBJECT, ” ZE_RESULT_ERROR_INVALID_SYNCHRONIZATION_OBJECT”},
{ZE_RESULT_ERROR_INVALID_ENUMERATION, ” ZE_RESULT_ERROR_INVALID_ENUMERATION”},
{ZE_RESULT_ERROR_UNSUPPORTED_ENUMERATION, ”
ZE_RESULT_ERROR_UNSUPPORTED_ENUMERATION”},
{ZE_RESULT_ERROR_UNSUPPORTED_IMAGE_FORMAT, ”
ZE_RESULT_ERROR_UNSUPPORTED_IMAGE_FORMAT”},
{ZE_RESULT_ERROR_INVALID_NATIVE_BINARY, ”
ZE_RESULT_ERROR_INVALID_NATIVE_BINARY”},
{ZE_RESULT_ERROR_INVALID_GLOBAL_NAME, ”
ZE_RESULT_ERROR_INVALID_GLOBAL_NAME”},
{ZE_RESULT_ERROR_INVALID_KERNEL_NAME, ”
ZE_RESULT_ERROR_INVALID_KERNEL_NAME”},
{ZE_RESULT_ERROR_INVALID_FUNCTION_NAME, ” ZE_RESULT_ERROR_INVALID_FUNCTION_NAME”},
{ZE_RESULT_ERROR_INVALID_GROUP_SIZE_DIMENSION, ”
ZE_RESULT_ERROR_INVALID_GROUP_SIZE_DIMENSION”},
{ZE_RESULT_ERROR_INVALID_GLOBAL_WIDTH_DIMENSION, ”
ZE_RESULT_ERROR_INVALID_GLOBAL_WIDTH_DIMENSION”},
{ZE_RESULT_ERROR_INVALID_KERNEL_ARGUMENT_INDEX, ”
ZE_RESULT_ERROR_INVALID_KERNEL_ARGUMENT_INDEX”},
{ZE_RESULT_ERROR_INVALID_KERNEL_ARGUMENT_SIZE, ”
ZE_RESULT_ERROR_INVALID_KERNEL_ARGUMENT_SIZE”},
{ZE_RESULT_ERROR_INVALID_KERNEL_ATTRIBUTE_VALUE, ” ZE_RESULT_ERROR_INVALID_KERNEL_ATTRIBUTE_VALUE”},
{ZE_RESULT_ERROR_INVALID_MODULE_UNLINKED, ”
ZE_RESULT_ERROR_INVALID_MODULE_UNLINKED”},
{ZE_RESULT_ERROR_INVALID_COMMAND_LIST_TYPE, ” ZE_RESULT_ERROR_INVALID_COMMAND_LIST_TYPE”},
{ZE_RESULT_ERROR_OVERLAPPING_REGIONS, ” ZE_RESULT_ERROR_OVERLAPPING_REGIONS”},
{ZE_RESULT_ERROR_UNKNOWN, “ZE_RESULT_ERROR_UNKNOWN”}}; auto i = mgetErrorString.find(error); if (i == mgetErrorString.end()) return “ZE_RESULT_ERROR_UNKNOWN”;
else return mgetErrorString.at(error);
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66 }
67
68 #define VALIDATECALL(myZeCall) 69 do
70 {
71 ze_result_t r = myZeCall;
if (r != ZE_RESULT_SUCCESS)
{ std::cout << getErrorString(r)
<< ” returned by ”
<< #myZeCall << “: ”
<< __FUNCTION__ << “: ”
<< __LINE__ << ” “;
}
} while (0);
void getDeviceHandles(ze_driver_handle_t &driverHandle, std::vector< ze_device_handle_t> &devices, int argc, char *argv[])
{
VALIDATECALL(zeInit(ZE_INIT_FLAG_GPU_ONLY));
uint32_t driverCount = 0;
VALIDATECALL(zeDriverGet(&driverCount, nullptr)); if (driverCount == 0)
{
std::cout << “Error could not retrieve driver” << std::endl; std::terminate();
}
VALIDATECALL(zeDriverGet(&driverCount, &driverHandle));
uint32_t deviceCount = 0;
VALIDATECALL(zeDeviceGet(driverHandle, &deviceCount, nullptr)); if (deviceCount == 0)
{
std::cout << “Error could not retrieve device” << std::endl; std::terminate();
} devices.resize(deviceCount);
VALIDATECALL(zeDeviceGet(driverHandle, &deviceCount, devices.data()));
ze_device_properties_t deviceProperties = {
ZE_STRUCTURE_TYPE_DEVICE_PROPERTIES}; for (const auto &device : devices)
{
VALIDATECALL(zeDeviceGetProperties(device, &deviceProperties));
if (verbose)
{
std::cout << “Device Name = ” << deviceProperties.name << std
::endl; std::cout << “deviceProperties.flags = ” << deviceProperties.
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flags << “on device” << device << std::endl;
115 }
116 }

117 }
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119 void testSysmanFrequency(ze_device_handle_t &device) {
std::cout << std::endl
<< ” —- Frequency tests —- ” << std::endl;
bool iamroot = (geteuid() == 0);
uint32_t count = 0;
VALIDATECALL(zesDeviceEnumFrequencyDomains(device, &count, nullptr)); if (count == 0) { std::cout << “Could not retrieve frequency domains” << std::endl; return;
}
std::vector<zes_freq_handle_t> handles(count, nullptr);
VALIDATECALL(zesDeviceEnumFrequencyDomains(device, &count, handles. data()));
for (const auto &handle : handles) { zes_freq_properties_t freqProperties = {}; zes_freq_range_t freqRange = {}; zes_freq_range_t testFreqRange = {}; zes_freq_state_t freqState = {};
VALIDATECALL(zesFrequencyGetProperties(handle, &freqProperties)); if (verbose) { std::cout << “freqProperties.type = ” << freqProperties.type
<< std::endl; std::cout << “freqProperties.canControl = ” << freqProperties.
canControl << std::endl; std::cout << “freqProperties.isThrottleEventSupported = ” <<
freqProperties.isThrottleEventSupported << std::endl; std::cout << “freqProperties.min = ” << freqProperties.min <<
std::endl; std::cout << “freqProperties.max = ” << freqProperties.max <<
std::endl; if (freqProperties.onSubdevice) { std::cout << “freqProperties.subdeviceId = ” <<
freqProperties.subdeviceId << std::endl;
}
}
VALIDATECALL(zesFrequencyGetState(handle, &freqState)); if (verbose) { std::cout << “freqState.currentVoltage = ” << freqState.
currentVoltage << std::endl; std::cout << “freqState.request = ” << freqState.request <<
std::endl; std::cout << “freqState.tdp = ” << freqState.tdp << std::endl; std::cout << “freqState.efficient = ” << freqState.efficient
<< std::endl;
std::cout << “freqState.actual = ” << freqState.actual << std
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::endl;
158 std::cout << “freqState.throttleReasons = ” << freqState.
throttleReasons << std::endl;
}
VALIDATECALL(zesFrequencyGetRange(handle, &freqRange)); if (verbose) { std::cout << “freqRange.min = ” << freqRange.min << std::endl; std::cout << “freqRange.max = ” << freqRange.max << std::endl;
}
count = 0;
VALIDATECALL(zesFrequencyGetAvailableClocks(handle, &count, nullptr)); std::vector<double> frequency(count);
VALIDATECALL(zesFrequencyGetAvailableClocks(handle, &count, frequency.data())); if (verbose) { for (auto freq : frequency) { std::cout << ” frequency = ” << freq << std::endl;
}
}
if (iamroot) {
// Test setting min and max frequency the same, then restore
originals testFreqRange.min = freqRange.min; testFreqRange.max = freqRange.min; if (verbose) { std::cout << “Setting Frequency Range . min ” <<
testFreqRange.min << std::endl; std::cout << “Setting Frequency Range . max ” <<
testFreqRange.max << std::endl;
}
VALIDATECALL(zesFrequencySetRange(handle, &testFreqRange));
VALIDATECALL(zesFrequencyGetRange(handle, &testFreqRange)); if (verbose) { std::cout << “After Setting Getting Frequency Range . min
” << testFreqRange.min << std::endl; std::cout << “After Setting Getting Frequency Range . max ” << testFreqRange.max << std::endl;
}
testFreqRange.min = freqRange.min; testFreqRange.max = freqRange.max; if (verbose) { std::cout << “Setting Frequency Range . min ” <<
testFreqRange.min << std::endl; std::cout << “Setting Frequency Range . max ” <<
testFreqRange.max << std::endl;
}
VALIDATECALL(zesFrequencySetRange(handle, &testFreqRange));
VALIDATECALL(zesFrequencyGetRange(handle, &testFreqRange)); if (verbose) { std::cout << “After Setting Getting Frequency Range . min
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” << testFreqRange.min << std::endl;
199 std::cout << “After Setting Getting Frequency Range . max
” << testFreqRange.max << std::endl;
}
} else { std::cout << “Not running as Root. Skipping
zetSysmanFrequencySetRange test.” << std::endl;
}
}
}
bool validateGetenv(const char *name)
{
const char *env = getenv(name); if ((nullptr == env) || (0 == strcmp(“0”, env))) return false;
return (0 == strcmp(“1”, env));
}
int main(int argc, char *argv[])
{ std::vector<ze_device_handle_t> devices; ze_driver_handle_t driver;
if (!validateGetenv(“ZES_ENABLE_SYSMAN”))
{
std::cout << “Must set environment variable ZES_ENABLE_SYSMAN=1”
<< std::endl; exit(0);
}
getDeviceHandles(driver, devices, argc, argv); testSysmanFrequency(devices[0]);
}
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*****************************************************************
Soham Kulkarni, EE19BTECH11053, IIT Hyderabad

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