+/*
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+ *
+ * Copyright (c) 2018, by the GROMACS development team, led by
+ * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
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+
+/*! \internal \file
+ * \brief
+ * Implements PmeGpuProgramImpl, which stores permanent PME GPU context-derived data,
+ * such as (compiled) kernel handles.
+ *
+ * \author Aleksei Iupinov <a.yupinov@gmail.com>
+ * \ingroup module_ewald
+ */
+#include "gmxpre.h"
+
+#include "gromacs/gpu_utils/gmxopencl.h"
+#include "gromacs/gpu_utils/ocl_compiler.h"
+#include "gromacs/utility/stringutil.h"
+
+#include "pme-gpu-internal.h" // for GridOrdering enum
+#include "pme-gpu-program-impl.h"
+#include "pme-gpu-types-host.h"
+
+PmeGpuProgramImpl::PmeGpuProgramImpl(const gmx_device_info_t *deviceInfo)
+{
+ // Context creation (which should happen outside of this class: #2522
+ cl_platform_id platformId = deviceInfo->ocl_gpu_id.ocl_platform_id;
+ cl_device_id deviceId = deviceInfo->ocl_gpu_id.ocl_device_id;
+ cl_context_properties contextProperties[3];
+ contextProperties[0] = CL_CONTEXT_PLATFORM;
+ contextProperties[1] = (cl_context_properties) platformId;
+ contextProperties[2] = 0; /* Terminates the list of properties */
+
+ cl_int clError;
+ context = clCreateContext(contextProperties, 1, &deviceId, nullptr, nullptr, &clError);
+ if (clError != CL_SUCCESS)
+ {
+ const std::string errorString = gmx::formatString("Failed to create context for PME on GPU #%s:\n OpenCL error %d: %s",
+ deviceInfo->device_name, clError, ocl_get_error_string(clError).c_str());
+ GMX_THROW(gmx::InternalError(errorString));
+ }
+
+ warpSize = gmx::ocl::getWarpSize(context, deviceId);
+
+ //TODO: OpenCL kernel compilation should be here.
+}
+
+PmeGpuProgramImpl::~PmeGpuProgramImpl()
+{
+ // TODO: log releasing errors
+ clReleaseContext(context);
+}