allocateQ.c
1c0fbaf83a18master

allocateQ.c
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			#include <stdio.h>
			#include <stdlib.h>
			#include <string.h>
			#include <math.h>

			#include "allvars.h"
			#include "proto.h"


			#ifdef PY_INTERFACE

			/*! \file allocate.c
			* \brief routines for allocating particle and tree storage
			*/

			/*! Allocates a number of small buffers and arrays, the largest one being
			* the communication buffer. The communication buffer itself is mapped
			* onto various tables used in the different parts of the force
			* algorithms. We further allocate space for the top-level tree nodes, and
			* auxiliary arrays for the domain decomposition algorithm.
			*/
			void allocate_commbuffersQ(void)
			{
			size_t bytes;

			DomainStartListQ = malloc(NTask * sizeof(int));
			DomainEndListQ = malloc(NTask * sizeof(int));

			TopNodesQ = malloc(MAXTOPNODES * sizeof(struct topnode_data));

			DomainWorkQ = malloc(MAXTOPNODES * sizeof(double));
			DomainCountQ = malloc(MAXTOPNODES * sizeof(int));
			DomainCountSphQ = malloc(MAXTOPNODES * sizeof(int));
			DomainTaskQ = malloc(MAXTOPNODES * sizeof(int));


			All.BunchSizeDomain =
			(All.BufferSize * 1024 * 1024) / (sizeof(struct particle_data) + sizeof(struct sph_particle_data) +
			sizeof(peanokey));

			if(All.BunchSizeDomain & 1)
			All.BunchSizeDomain -= 1; /* make sure that All.BunchSizeDomain is even */



			if(!(CommBufferQ = malloc(bytes = All.BufferSize * 1024 * 1024)))
			{
			printf("failed to allocate memory for `CommBufferQ' (%g MB).\n", bytes / (1024.0 * 1024.0));
			endrun(2);
			}

			DomainPartBufQ = (struct particle_data *) CommBufferQ;
			DomainSphBufQ = (struct sph_particle_data *) (DomainPartBufQ + All.BunchSizeDomain);
			DomainKeyBufQ = (peanokey *) (DomainSphBufQ + All.BunchSizeDomain);



			}


			#endif

Gear/src/allocateQ.c1c0fbaf83a18master

allocateQ.cView Options

Gear/src/allocateQ.c
1c0fbaf83a18master

allocateQ.c
View Options