Extra device info

CHANGELOG.md

@@ -2,6 +2,9 @@
 All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
+### Added
+- Device descriptors "max_compute_units", "max_work_item_dimensions", "max_work_item_sizes", "max_work_group_size", "max_num_sub_groups" and "aspects" for int64 atomics inside dpctl C API and inside the dpctl.SyclDevice class.
+
 ### Removed
 - The Legacy OpenCL interface.
 

backends/include/dppl_sycl_device_interface.h

@@ -102,6 +102,76 @@ DPPL_API
 __dppl_give const char*
 DPPLDevice_GetDriverInfo (__dppl_keep const DPPLSyclDeviceRef DRef);
 
+/*!
+ * @brief Wrapper over device.get_info<info::device::max_compute_units>().
+ *
+ * @param    DRef           Opaque pointer to a sycl::device
+ * @return   Returns the valid result if device exists else returns 0.
+ */
+DPPL_API
+uint32_t
+DPPLDevice_GetMaxComputeUnits (__dppl_keep const DPPLSyclDeviceRef DRef);
+
+/*!
+ * @brief Wrapper for get_info<info::device::max_work_item_dimensions>().
+ *
+ * @param    DRef           Opaque pointer to a sycl::device
+ * @return   Returns the valid result if device exists else returns 0.
+ */
+DPPL_API
+uint32_t
+DPPLDevice_GetMaxWorkItemDims (__dppl_keep const DPPLSyclDeviceRef DRef);
+
+/*!
+ * @brief Wrapper for get_info<info::device::max_work_item_sizes>().
+ *
+ * @param    DRef           Opaque pointer to a sycl::device
+ * @return   Returns the valid result if device exists else returns NULL.
+ */
+DPPL_API
+__dppl_keep size_t*
+DPPLDevice_GetMaxWorkItemSizes (__dppl_keep const DPPLSyclDeviceRef DRef);
+
+/*!
+ * @brief Wrapper for get_info<info::device::max_work_group_size>().
+ *
+ * @param    DRef           Opaque pointer to a sycl::device
+ * @return   Returns the valid result if device exists else returns 0.
+ */
+DPPL_API
+size_t
+DPPLDevice_GetMaxWorkGroupSize (__dppl_keep const DPPLSyclDeviceRef DRef);
+
+/*!
+ * @brief Wrapper over device.get_info<info::device::max_num_sub_groups>.
+ *
+ * @param    DRef           Opaque pointer to a sycl::device
+ * @return   Returns the valid result if device exists else returns 0.
+ */
+DPPL_API
+uint32_t
+DPPLDevice_GetMaxNumSubGroups (__dppl_keep const DPPLSyclDeviceRef DRef);
+
+/*!
+ * @brief Wrapper over device.get_info<info::device::aspect::int64_base_atomics>.
+ *
+ * @param    DRef           Opaque pointer to a sycl::device
+ * @return   Returns true if device has int64_base_atomics else returns false.
+ */
+DPPL_API
+bool
+DPPLDevice_HasInt64BaseAtomics (__dppl_keep const DPPLSyclDeviceRef DRef);
+
+/*!
+ * @brief Wrapper over device.get_info<info::device::aspect::int64_extended_atomics>.
+ *
+ * @param    DRef           Opaque pointer to a sycl::device
+ * @return   Returns true if device has int64_extended_atomics else returns false.
+ */
+DPPL_API
+bool
+DPPLDevice_HasInt64ExtendedAtomics (__dppl_keep const DPPLSyclDeviceRef DRef);
+
 /*!
  * @brief Returns a C string for the device name.
  *

backends/include/dppl_utils.h

@@ -24,18 +24,27 @@
 
 #pragma once
 
+#include "dppl_data_types.h"
 #include "Support/DllExport.h"
 #include "Support/ExternC.h"
 #include "Support/MemOwnershipAttrs.h"
 
 DPPL_C_EXTERN_C_BEGIN
 
 /*!
- * @brief Deletes the C String argument
+ * @brief Deletes the C String argument.
  *
  * @param    str            C string to be deleted
  */
 DPPL_API
 void DPPLCString_Delete (__dppl_take const char* str);
 
+/*!
+ * @brief Deletes an array of size_t elements.
+ *
+ * @param    arr            Array to be deleted.
+ */
+DPPL_API
+void DPPLSize_t_Array_Delete (__dppl_take size_t* arr);
+
 DPPL_C_EXTERN_C_END

backends/source/dppl_sycl_device_interface.cpp

@@ -103,53 +103,161 @@ void DPPLDevice_Delete (__dppl_take DPPLSyclDeviceRef DRef)
 
 bool DPPLDevice_IsAccelerator (__dppl_keep const DPPLSyclDeviceRef DRef)
 {
-    return unwrap(DRef)->is_accelerator();
+    auto D = unwrap(DRef);
+    if (D) {
+        return D->is_accelerator();
+    }
+    return false;
 }
 
 bool DPPLDevice_IsCPU (__dppl_keep const DPPLSyclDeviceRef DRef)
 {
-    return unwrap(DRef)->is_cpu();
+    auto D = unwrap(DRef);
+    if (D) {
+        return D->is_cpu();
+    }
+    return false;
 }
 
 bool DPPLDevice_IsGPU (__dppl_keep const DPPLSyclDeviceRef DRef)
 {
-    return unwrap(DRef)->is_gpu();
+    auto D = unwrap(DRef);
+    if (D) {
+        return D->is_gpu();
+    }
+    return false;
 }
 
 
 bool DPPLDevice_IsHost (__dppl_keep const DPPLSyclDeviceRef DRef)
 {
-    return unwrap(DRef)->is_host();
+    auto D = unwrap(DRef);
+    if (D) {
+        return D->is_host();
+    }
+    return false;
+}
+
+
+uint32_t
+DPPLDevice_GetMaxComputeUnits (__dppl_keep const DPPLSyclDeviceRef DRef)
+{
+    auto D = unwrap(DRef);
+    if (D) {
+        return D->get_info<info::device::max_compute_units>();
+    }
+    return 0;
+}
+
+uint32_t
+DPPLDevice_GetMaxWorkItemDims (__dppl_keep const DPPLSyclDeviceRef DRef)
+{
+    auto D = unwrap(DRef);
+    if (D) {
+        return D->get_info<info::device::max_work_item_dimensions>();
+    }
+    return 0;
+}
+
+__dppl_keep size_t*
+DPPLDevice_GetMaxWorkItemSizes (__dppl_keep const DPPLSyclDeviceRef DRef)
+{
+    size_t *sizes = nullptr;
+    auto D = unwrap(DRef);
+    if (D) {
+        auto id_sizes = D->get_info<info::device::max_work_item_sizes>();
+        sizes = new size_t[3];
+        for(auto i = 0ul; i < 3; ++i) {
+            sizes[i] = id_sizes[i];
+        }
+    }
+    return sizes;
+}
+
+size_t
+DPPLDevice_GetMaxWorkGroupSize (__dppl_keep const DPPLSyclDeviceRef DRef)
+{
+    auto D = unwrap(DRef);
+    if (D) {
+        return D->get_info<info::device::max_work_group_size>();
+    }
+    return 0;
+}
+
+uint32_t
+DPPLDevice_GetMaxNumSubGroups (__dppl_keep const DPPLSyclDeviceRef DRef)
+{
+    auto D = unwrap(DRef);
+    if (D) {
+        return D->get_info<info::device::max_num_sub_groups>();
+    }
+    return 0;
+}
+
+bool
+DPPLDevice_HasInt64BaseAtomics (__dppl_keep const DPPLSyclDeviceRef DRef)
+{
+    auto D = unwrap(DRef);
+    if (D) {
+        return D->has(aspect::int64_base_atomics);
+    }
+    return false;
+}
+
+bool
+DPPLDevice_HasInt64ExtendedAtomics (__dppl_keep const DPPLSyclDeviceRef DRef)
+{
+    auto D = unwrap(DRef);
+    if (D) {
+        return D->has(aspect::int64_extended_atomics);
+    }
+    return false;
 }
 
 __dppl_give const char*
 DPPLDevice_GetName (__dppl_keep const DPPLSyclDeviceRef DRef)
 {
-    auto name = unwrap(DRef)->get_info<info::device::name>();
-    auto cstr_name = new char [name.length()+1];
-    std::strcpy (cstr_name, name.c_str());
-    return cstr_name;
+    auto D = unwrap(DRef);
+    if (D) {
+        auto name = D->get_info<info::device::name>();
+        auto cstr_name = new char [name.length()+1];
+        std::strcpy (cstr_name, name.c_str());
+        return cstr_name;
+    }
+    return nullptr;
 }
 
 __dppl_give const char*
 DPPLDevice_GetVendorName (__dppl_keep const DPPLSyclDeviceRef DRef)
 {
-    auto vendor = unwrap(DRef)->get_info<info::device::name>();
-    auto cstr_vendor = new char [vendor.length()+1];
-    std::strcpy (cstr_vendor, vendor.c_str());
-    return cstr_vendor;
+    auto D = unwrap(DRef);
+    if (D) {
+        auto vendor = D->get_info<info::device::vendor>();
+        auto cstr_vendor = new char [vendor.length()+1];
+        std::strcpy (cstr_vendor, vendor.c_str());
+        return cstr_vendor;
+    }
+    return nullptr;
 }
 
 __dppl_give const char*
 DPPLDevice_GetDriverInfo (__dppl_keep const DPPLSyclDeviceRef DRef)
 {
-    auto driver = unwrap(DRef)->get_info<info::device::driver_version>();
-    auto cstr_driver = new char [driver.length()+1];
-    std::strcpy (cstr_driver, driver.c_str());
-    return cstr_driver;
+    auto D = unwrap(DRef);
+    if (D) {
+        auto driver = D->get_info<info::device::driver_version>();
+        auto cstr_driver = new char [driver.length()+1];
+        std::strcpy (cstr_driver, driver.c_str());
+        return cstr_driver;
+    }
+    return nullptr;
 }
 
 bool DPPLDevice_IsHostUnifiedMemory (__dppl_keep const DPPLSyclDeviceRef DRef)
 {
-    return unwrap(DRef)->get_info<info::device::host_unified_memory>();
+    auto D = unwrap(DRef);
+    if (D) {
+        return D->get_info<info::device::host_unified_memory>();
+    }
+    return false;
 }

backends/source/dppl_utils.cpp

@@ -29,3 +29,8 @@ void DPPLCString_Delete (__dppl_take const char* str)
 {
     delete[] str;
 }
+
+void DPPLSize_t_Array_Delete (__dppl_take size_t* arr)
+{
+    delete[] arr;
+}

backends/tests/CMakeLists.txt

@@ -23,6 +23,7 @@ else()
   link_directories(${GTEST_LIB_DIR})
 
   set(DPCTL_C_API_TEST_CASES
+    test_sycl_device_interface
     test_sycl_kernel_interface
     test_sycl_platform_interface
     test_sycl_program_interface