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38 * Implements PmeGpuProgramImpl, which stores permanent PME GPU context-derived data,
39 * such as (compiled) kernel handles.
41 * \author Aleksei Iupinov <a.yupinov@gmail.com>
42 * \ingroup module_ewald
46 #include "gromacs/gpu_utils/gmxopencl.h"
47 #include "gromacs/gpu_utils/ocl_compiler.h"
48 #include "gromacs/utility/stringutil.h"
50 #include "pme-gpu-internal.h" // for GridOrdering enum
51 #include "pme-gpu-program-impl.h"
52 #include "pme-gpu-types-host.h"
54 PmeGpuProgramImpl::PmeGpuProgramImpl(const gmx_device_info_t *deviceInfo)
56 // Context creation (which should happen outside of this class: #2522
57 cl_platform_id platformId = deviceInfo->ocl_gpu_id.ocl_platform_id;
58 cl_device_id deviceId = deviceInfo->ocl_gpu_id.ocl_device_id;
59 cl_context_properties contextProperties[3];
60 contextProperties[0] = CL_CONTEXT_PLATFORM;
61 contextProperties[1] = (cl_context_properties) platformId;
62 contextProperties[2] = 0; /* Terminates the list of properties */
65 context = clCreateContext(contextProperties, 1, &deviceId, nullptr, nullptr, &clError);
66 if (clError != CL_SUCCESS)
68 const std::string errorString = gmx::formatString("Failed to create context for PME on GPU #%s:\n OpenCL error %d: %s",
69 deviceInfo->device_name, clError, ocl_get_error_string(clError).c_str());
70 GMX_THROW(gmx::InternalError(errorString));
73 warpSize = gmx::ocl::getWarpSize(context, deviceId);
75 //TODO: OpenCL kernel compilation should be here.
78 PmeGpuProgramImpl::~PmeGpuProgramImpl()
80 // TODO: log releasing errors
81 clReleaseContext(context);