-/* -*- mode: c; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; c-file-style: "stroustrup"; -*-
+/*
+ * This file is part of the GROMACS molecular simulation package.
*
+ * Copyright (c) 2012,2013,2014, by the GROMACS development team, led by
+ * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
+ * and including many others, as listed in the AUTHORS file in the
+ * top-level source directory and at http://www.gromacs.org.
*
- * This file is part of GROMACS.
- * Copyright (c) 2012-
- *
- * Written by the Gromacs development team under coordination of
- * David van der Spoel, Berk Hess, and Erik Lindahl.
- *
- * This library is free software; you can redistribute it and/or
+ * GROMACS is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 2
+ * as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
- * To help us fund GROMACS development, we humbly ask that you cite
- * the research papers on the package. Check out http://www.gromacs.org
+ * GROMACS is distributed in the hope that it will be useful,
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
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*
- * And Hey:
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+ *
+ * To help us fund GROMACS development, we humbly ask that you cite
+ * the research papers on the package. Check out http://www.gromacs.org.
*/
#ifndef HWINFO_H
#define HWINFO_H
-#include "simple.h"
-#include "nbnxn_cuda_types_ext.h"
-#include "../gmx_cpuid.h"
+#include "gromacs/legacyheaders/gmx_cpuid.h"
+#include "gromacs/legacyheaders/types/nbnxn_cuda_types_ext.h"
+#include "gromacs/legacyheaders/types/simple.h"
#ifdef __cplusplus
extern "C" {
* The gmx_hardware_detect module initializes it. */
typedef struct
{
- gmx_bool bUserSet; /* true if the GPUs in cuda_dev_use are manually provided by the user */
- gmx_bool bDevShare; /* true if any of the devices is shared by
- (t)MPI ranks, with auto-detection always FALSE */
-
- int ncuda_dev_use; /* number of devices selected to be used */
- int *cuda_dev_use; /* index of the devices selected to be used */
- int ncuda_dev; /* total number of devices detected */
- cuda_dev_info_ptr_t cuda_dev; /* devices detected in the system (per node) */
+ gmx_bool bDetectGPUs; /* Did we try to detect GPUs? */
+ int ncuda_dev; /* total number of devices detected */
+ cuda_dev_info_ptr_t cuda_dev; /* devices detected in the system (per node) */
+ int ncuda_dev_compatible; /* number of compatible GPUs */
} gmx_gpu_info_t;
/* Hardware information structure with CPU and GPU information.
- * It is initialized by gmx_detect_hardware(). */
+ * It is initialized by gmx_detect_hardware().
+ * NOTE: this structure may only contain structures that are globally valid
+ * (i.e. must be able to be shared among all threads) */
typedef struct
{
- gmx_bool bCanUseGPU; /* True if compatible GPUs are detected during hardware detection */
- gmx_gpu_info_t gpu_info; /* Information about GPUs detected in the system */
-
- gmx_cpuid_t cpuid_info; /* CPUID information about CPU detected;
- NOTE: this will only detect the CPU thread 0 of the
- current process runs on. */
- int nthreads_hw_avail; /* Number of hardware threads available; this number
- is based on the number of CPUs reported as available
- by the OS at the time of detection. */
+ gmx_gpu_info_t gpu_info; /* Information about GPUs detected in the system */
+
+ gmx_cpuid_t cpuid_info; /* CPUID information about CPU detected;
+ NOTE: this will only detect the CPU thread 0 of the
+ current process runs on. */
+ int nthreads_hw_avail; /* Number of hardware threads available; this number
+ is based on the number of CPUs reported as available
+ by the OS at the time of detection. */
} gmx_hw_info_t;
+
+/* The options for the thread affinity setting, default: auto */
+enum {
+ threadaffSEL, threadaffAUTO, threadaffON, threadaffOFF, threadaffNR
+};
+
+/* GPU device selection information -- for now with only CUDA devices */
+typedef struct
+{
+ char *gpu_id; /* GPU id's to use, each specified as chars */
+ gmx_bool bUserSet; /* true if the GPUs in cuda_dev_use are manually provided by the user */
+
+ int ncuda_dev_use; /* number of device (IDs) selected to be used */
+ int *cuda_dev_use; /* device index list providing GPU to PP rank mapping, GPUs can be listed multiple times when ranks share them */
+} gmx_gpu_opt_t;
+
+/* Threading and GPU options, can be set automatically or by the user */
+typedef struct {
+ int nthreads_tot; /* Total number of threads requested (TMPI) */
+ int nthreads_tmpi; /* Number of TMPI threads requested */
+ int nthreads_omp; /* Number of OpenMP threads requested */
+ int nthreads_omp_pme; /* As nthreads_omp, but for PME only nodes */
+ int thread_affinity; /* Thread affinity switch, see enum above */
+ int core_pinning_stride; /* Logical core pinning stride */
+ int core_pinning_offset; /* Logical core pinning offset */
+
+ gmx_gpu_opt_t gpu_opt; /* The GPU options */
+} gmx_hw_opt_t;
+
#ifdef __cplusplus
}
#endif
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