int main(){
struct rthread_t newthread;
struct rthread_t newthread2;
int ret=rthread_create(&newthread,testfunc,NULL);
int ret2=rthread_create(&newthread2,test2func,NULL);
while(1){};
return 0;
}
static void build_histogram_thread_create(void)
{
int error;
pthread_attr_init(&build_histogram_attr);
pthread_attr_setstacksize(&build_histogram_attr, STACK_SIZE);
#ifdef HW_HISTOGRAM
printf("building histogram in hardware...\n");
rthread_attr_init(&build_histogram_rattr);
rthread_attr_setslotnum(&build_histogram_rattr, 0);
rthread_attr_setresources(&build_histogram_rattr, build_histogram_resources, 2);
error = rthread_create(
&build_histogram_thread,
&build_histogram_attr,
&build_histogram_rattr,
NULL);
#else
printf("building histogram in software...\n");
error = pthread_create(
&build_histogram_thread,
&build_histogram_attr,
build_histogram_entry,
NULL);
#endif
if(error){
perror("pthread_create: build_histogram");
exit(1);
}
}
static inline int posix_hwt_create(int nslot, void * init_data, reconos_res_t * res, int nres)
{
rthread_attr_init(&rattr[nslot]);
rthread_attr_setslotnum(&rattr[nslot], nslot);
rthread_attr_setresources(&rattr[nslot], res, nres);
//pthread_attr_init(&posix_attr);
return rthread_create(&posix_thread[nslot], &rattr[nslot], init_data);
}
/**
creates sample HW threads (dynamic)
@param number_of_threads: number of threads for sampling step
@param hw_circuit: hardware circuit of the thread
@param parameter: pointer to a array filled with parameter (size <= 128 byte)
@param number_of_parameter: number of parameter in parameter array
*/
void set_sample_hw_dynamic (unsigned int number_of_threads, reconos_circuit_t * hw_circuit, int * parameter, unsigned int number_of_parameter){
int i;
// terminate old sw threads if needed
if (number_of_threads < 0 || number_of_threads == hw_number_of_threads_s_dynamic)
{
return;
}
else
{
if (number_of_threads < hw_number_of_threads_s_dynamic)
{
// remove slots, which are not needed
sample_hw_delete_dynamic(hw_number_of_threads_s_dynamic - number_of_threads);
hw_number_of_threads_s_dynamic = number_of_threads;
return;
}
}
if (information_s_dynamic == NULL)
{
// set information
information_s_dynamic = (information_struct_s *) malloc (sizeof(information_struct_s));
information_s_dynamic[0].particles = particles;
information_s_dynamic[0].number_of_particles = N;
information_s_dynamic[0].particle_size = sizeof(particle);
information_s_dynamic[0].max_number_of_particles = 8096 / sizeof(particle);
information_s_dynamic[0].block_size = block_size;
information_s_dynamic[0].parameter = parameter;
information_s_dynamic[0].number_of_parameter = number_of_parameter;
}
if (res_s_dynamic == NULL)
{
// set ressources
res_s_dynamic = (reconos_res_t *) malloc (4 * sizeof(reconos_res_t));
res_s_dynamic[0].ptr = mb_sampling_handle;
res_s_dynamic[0].type = CYG_MBOX_HANDLE_T ;
res_s_dynamic[1].ptr = mb_sampling_done_handle;
res_s_dynamic[1].type = CYG_MBOX_HANDLE_T ;
res_s_dynamic[2].ptr = hw_mb_sampling_measurement_handle;
res_s_dynamic[2].type = CYG_MBOX_HANDLE_T ;
res_s_dynamic[3].ptr = hw_mb_sampling_exit_handle;
res_s_dynamic[3].type = CYG_MBOX_HANDLE_T ;
}
// create and resume hw sampling threads in eCos
for (i = 0; i < (number_of_threads - hw_number_of_threads_s_dynamic); i++)
{
hw_thread_node * new_node = malloc (sizeof(hw_thread_node));
new_node->sw_attr = (pthread_attr_t *) malloc (sizeof(pthread_attr_t));
new_node->hw_attr = (rthread_attr_t *) malloc (sizeof(rthread_attr_t));
int ret = pthread_attr_init(new_node->sw_attr);
//diag_printf("\nS: p_thread_attr_init = %d", ret);
ret = pthread_attr_setstacksize(new_node->sw_attr, STACK_SIZE);
//diag_printf("\nS: p_thread_attr_set_stacksize = %d", ret);
ret = rthread_attr_init(new_node->hw_attr);
//diag_printf("\nS: r_thread_attr_init = %d", ret);
ret = rthread_attr_setcircuit(new_node->hw_attr, hw_circuit);
//diag_printf("\nS: r_thread_set_circuit = %d", ret);
//rthread_attr_setstatesize(new_node->hw_attr, 16384);
ret = rthread_attr_setresources(new_node->hw_attr, res_s_dynamic, 4);
//diag_printf("\nS: r_thread_attr_setresources = %d", ret);
ret = rthread_create(&(new_node->hw_thread), new_node->sw_attr, new_node->hw_attr,
(void*)information_s_dynamic);
//diag_printf("\nS: r_thread_create = %d", ret);
// insert node to list
new_node->next = hw_threads_s_dynamic;
hw_threads_s_dynamic = new_node;
}
// set number of hw threads
hw_number_of_threads_s_dynamic = number_of_threads;
}
int main( int argc, char *argv[] )
{
unsigned int i, start_count = 0, done_count = 0;
timing_t t_start = 0, t_stop = 0, t_gen = 0, t_sort = 0, t_merge =
0, t_check = 0;
unsigned int *addr;
unsigned int dummy;
int retval;
printf( "-------------------------------------------------------\n"
"ReconOS hardware multithreading case study (sort)\n"
"(c) Computer Engineering Group, University of Paderborn\n\n"
"eCos/POSIX, multi-threaded hardware version (" __FILE__ ")\n"
"Compiled on " __DATE__ ", " __TIME__ ".\n"
"-------------------------------------------------------\n\n" );
#ifdef USE_CACHE
printf( "enabling data cache for external ram\n" );
XCache_EnableDCache( 0x80000000 );
#else
printf( "data cache disabled\n" );
XCache_DisableDCache( );
#endif
data = buf_a;
//----------------------------------
//-- GENERATE DATA
//----------------------------------
printf( "Generating data..." );
t_start = gettime( );
generate_data( data, SIZE );
t_stop = gettime( );
t_gen = calc_timediff_ms( t_start, t_stop );
printf( "done\n" );
#ifdef USE_CACHE
// flush cache contents - the hardware can only read from main memory
// TODO: storing could be more efficient
printf( "Flushing cache..." );
XCache_EnableDCache( 0x80000000 );
printf( "done\n" );
#endif
//----------------------------------
//-- SORT DATA
//----------------------------------
// create mail boxes for 'start' and 'complete' messages
mb_start_attr.mq_flags = mb_done_attr.mq_flags = 0;
mb_start_attr.mq_maxmsg = mb_done_attr.mq_maxmsg = 10;
mb_start_attr.mq_msgsize = mb_done_attr.mq_msgsize = 4;
mb_start_attr.mq_curmsgs = mb_done_attr.mq_curmsgs = 0;
// unlink mailboxes, if they exist
retval = mq_unlink("/mb_start");
if (retval != 0 && errno != ENOENT) { // we don't care if it doesn't exist
diag_printf("unable to unlink mb_start");
}
retval = mq_unlink("/mb_done");
if (retval != 0 && errno != ENOENT) { // we don't care if it doesn't exist
diag_printf("unable to unlink mb_done");
}
// open/create mailboxes
mb_start = mq_open("/mb_start",
O_RDWR | O_CREAT, S_IRWXU | S_IRWXG,
&mb_start_attr);
if (mb_start == (mqd_t)-1) {
diag_printf("unable to create mb_start");
}
mb_done = mq_open("/mb_done",
O_RDWR | O_CREAT, S_IRWXU | S_IRWXG,
&mb_done_attr);
if (mb_done == (mqd_t)-1) {
diag_printf("unable to create mb_done");
}
// create sorting sowftware threads
for ( i = 0; i < MT_HW_NUM_SW_THREADS; i++ ) {
pthread_attr_init(&thread_sorter_attr[i]);
pthread_create(&thread_sorter[i],
&thread_sorter_attr[i],
sort8k_entry_posix, (void*)i);
}
// create sorting hardware thread
pthread_attr_init(&hwthread_sorter_attr);
pthread_attr_setstacksize(&hwthread_sorter_attr, STACK_SIZE);
rthread_attr_init(&hwthread_sorter_hwattr);
rthread_attr_setslotnum(&hwthread_sorter_hwattr, 0);
rthread_attr_setresources(&hwthread_sorter_hwattr, hwthread_sorter_resources, 2);
rthread_create(&hwthread_sorter, &hwthread_sorter_attr, &hwthread_sorter_hwattr, (void*)0);
printf( "Sorting data..." );
i = 0;
t_start = gettime( );
// put 9 messages into mb_start
while ( start_count < 9 ) {
addr = &data[i];
if ( mq_send( mb_start, ( void * ) &addr, sizeof(addr), 0 ) == 0 ) {
start_count++;
i += N;
} else {
perror("while sending to mq_send");
break;
}
}
t_stop = gettime( );
t_sort += calc_timediff_ms( t_start, t_stop );
while ( done_count < SIZE / N ) {
t_start = gettime( );
// if we have something to distribute,
// put one into the start mailbox
if ( start_count < SIZE / N ) {
addr = &data[i];
if ( mq_send( mb_start, ( void * ) &addr, sizeof(addr), 0 ) == 0 ) {
start_count++;
i += N;
} else {
perror("while sending to mq_send");
break;
}
}
// see whether anybody's done
if ( mq_receive( mb_done, (void*)&dummy, sizeof(dummy), 0 ) == sizeof(dummy) ) {
done_count++;
} else {
perror( "while receiving from mq_done" );
break;
}
t_stop = gettime( );
t_sort += calc_timediff_ms( t_start, t_stop );
}
printf( "done\n" );
#ifdef USE_CACHE
// flush cache contents
// TODO: invalidating would suffice
printf( "Flushing cache..." );
XCache_EnableDCache( 0x80000000 );
printf( "done\n" );
#endif
//----------------------------------
//-- MERGE DATA
//----------------------------------
printf( "Merging data..." );
t_start = gettime( );
data = recursive_merge( data, buf_b, SIZE, N, simple_merge );
t_stop = gettime( );
t_merge = calc_timediff_ms( t_start, t_stop );
printf( "done\n" );
//----------------------------------
//-- CHECK DATA
//----------------------------------
printf( "Checking sorted data..." );
t_start = gettime( );
if ( check_data( data, SIZE ) != 0 )
printf( "CHECK FAILED!\n" );
else
printf( "check successful.\n" );
t_stop = gettime( );
t_check = calc_timediff_ms( t_start, t_stop );
printf( "\nRunning times (size: %d words):\n"
"\tGenerate data: %d ms\n"
"\tSort data : %d ms\n"
"\tMerge data : %d ms\n"
"\tCheck data : %d ms\n"
"\nTotal computation time (sort & merge): %d ms\n",
SIZE, t_gen, t_sort, t_merge, t_check, t_sort + t_merge );
return 0;
}
int main() {
// send message queue
char *send_buf;
char *recv_buf;
size_t len = 4;
unsigned int prio = 1;
int n = 0;
struct mq_attr hw_sw_attr;
struct mq_attr sw_hw_attr;
mqd_t mqd_hw_sw;
mqd_t mqd_sw_hw;
hw_sw_attr.mq_flags = 0;
hw_sw_attr.mq_maxmsg = 10;
hw_sw_attr.mq_msgsize = len;
hw_sw_attr.mq_curmsgs = 0;
sw_hw_attr.mq_flags = 0;
sw_hw_attr.mq_maxmsg = 10;
sw_hw_attr.mq_msgsize = len;
sw_hw_attr.mq_curmsgs = 0;
if ((mqd_hw_sw = mq_open("/hw_sw", O_RDWR|O_CREAT, 777, &hw_sw_attr)) < 0)
perror("open hw_sw");
if ((mqd_sw_hw = mq_open("/sw_hw", O_RDWR|O_CREAT, 777, &sw_hw_attr)) < 0)
perror("open sw_hw");
send_buf = malloc(1024);
recv_buf = malloc(1024);
memset(send_buf, 0, 1024);
memset(recv_buf, 0, 1024);
rthread_attr_t rcv_attr;
rthread_attr_init(&rcv_attr);
reconos_res_t res[2] = {{&mqd_sw_hw,PTHREAD_MQD_T },
{&mqd_hw_sw,PTHREAD_MQD_T }};
rthread_attr_init(&rcv_attr);
rthread_attr_setslotnum(&rcv_attr, 0);
rthread_attr_setresources(&rcv_attr, res, 2);
rthread_t mythread;
rthread_create( &mythread, &rcv_attr, NULL);
if (mq_send(mqd_sw_hw, &send_buf, len, prio) < 0)
perror("mq_send");
fprintf(stderr, "--------------->message sent, ptr = %i\n", send_buf);
if (mq_send(mqd_sw_hw, &recv_buf, len, prio) < 0)
perror("mq_send");
fprintf(stderr, "--------------->message sent, ptr = %i\n", recv_buf);
int msglen = 12;
memcpy(send_buf, "hello world", msglen);
if (mq_send(mqd_sw_hw, &msglen, len, prio) < 0)
perror("mq_send");
fprintf(stderr, "--------------->message sent, ptr = %i\n", recv_buf);
if ((n = mq_receive(mqd_hw_sw, &msglen, len, &prio)) < 0)
perror("my_receive");
fprintf(stderr, "--------------->message received \n");
fprintf(stderr, "------------------> new message is %d bytes long \n", msglen);
fprintf(stderr, "memory at location \"recv_buf\" %s\n", recv_buf);
fprintf(stderr, "memory at location \"recv_buf + 16\" %s\n", recv_buf + 16);
sleep(10);
return 1;
}