int main(int argc, char *argv[])
{
unsigned row, col, coreid, i, j, m, n, k;
e_platform_t platform;
e_epiphany_t dev;
e_mem_t emem;
unsigned flag1 = 0x00000000;
unsigned flag2 = 0x00000000;
unsigned test = 0x00000000;
srand(1);
// initialize system, read platform params from
// default HDF. Then, reset the platform and
// get the actual system parameters.
e_init(NULL);
e_reset_system();
e_get_platform_info(&platform);
// Allocate a buffer in shared external memory
// for message passing from eCore to host.
if ( E_OK != e_shm_alloc(&emem, "shm_1", _BufSize) ) {
fprintf(stderr, "Failed to allocate shared memory. Error is %s\n",
strerror(errno));
exit(EXIT_FAILURE);
}
// Open a workgroup
e_open(&dev, 0, 0, platform.rows, platform.cols);
// Load the device program
e_load("e_dma_message_a.srec", &dev, mas_row, mas_col, E_TRUE);
// Wait for core program execution to finish
usleep(1000000);
// Results from every slave core
row=mas_row;
col=mas_col;
coreid = (row + platform.row) * 64 + col + platform.col;
fprintf(stderr,"%d: Message from eCore 0x%03x (%2d,%2d) : \n",(row*platform.cols+col),coreid,row,col);
// Read message
e_read(&dev, row, col, 0x6000, &flag1, sizeof(flag1));
e_read(&dev, row, col, 0x6004, &flag2, sizeof(flag2));
// Print the message and close the workgroup.
if((flag1 == (unsigned) 0x87654321)&&(flag2 != (unsigned) 0x87654321))
{
fprintf(stderr, "PASS!\n");
}else
{
fprintf(stderr, "FAIL!\n");
}
// Release the allocated buffer and finalize the
// e-platform connection.
e_shm_release("shm_1");
// Close the workgroup
e_close(&dev);
// Finalize the e-platform connection.
e_finalize();
return 0;
}
int main(int argc, char *argv[])
{
ros::init(argc, argv, "epiphany_node");
unsigned row, col, coreid, i;
e_platform_t platform;
e_epiphany_t dev;
e_mem_t mbuf;
srand(1);
e_set_loader_verbosity(L_D0);
e_set_host_verbosity(H_D0);
// initialize system, read platform params from
// default HDF. Then, reset the platform and
// get the actual system parameters.
e_init(NULL);
e_reset_system();
e_get_platform_info(&platform);
// Allocate a buffer in shared external memory
// for message passing from eCore to host.
if ( E_OK != e_shm_alloc(&mbuf, ShmName, ShmSize) ) {
fprintf(stderr, "Failed to allocate shared memory. Error is %s\n",
strerror(errno));
return EXIT_FAILURE;
}
for (i=0; i<SeqLen; i++)
{
char buf[ShmSize];
// Draw a random core
row = rand() % platform.rows;
col = rand() % platform.cols;
coreid = (row + platform.row) * 64 + col + platform.col;
fprintf(stderr, "%3d: Message from eCore 0x%03x (%2d,%2d): ", i, coreid, row, col);
// Open the single-core workgroup and reset the core, in
// case a previous process is running. Note that we used
// core coordinates relative to the workgroup.
e_open(&dev, row, col, 1, 1);
e_reset_group(&dev);
// Load the device program onto the selected eCore
// and launch after loading.
if ( E_OK != e_load("e_hello_world.srec", &dev, 0, 0, E_TRUE) ) {
fprintf(stderr, "Failed to load e_hello_world.srec\n");
return EXIT_FAILURE;
}
// Wait for core program execution to finish, then
// read message from shared buffer.
usleep(10000);
e_read(&mbuf, 0, 0, 0, buf, ShmSize);
// Print the message and close the workgroup.
printf("\"%s\"\n", buf);
e_close(&dev);
}
// Release the allocated buffer and finalize the
// e-platform connection.
e_shm_release(ShmName);
e_finalize();
return 0;
}
int main(int argc, char *argv[])
{
unsigned row, col, coreid, i, e_status;
e_platform_t platform;
e_epiphany_t dev;
e_mem_t mbuf;
int retval = EXIT_SUCCESS;
srand((unsigned int)time(NULL));
e_set_host_verbosity(H_D0);
// initialize system, read platform params from
// default HDF. Then, reset the platform and
// get the actual system parameters.
if ( E_OK != e_init(NULL) ) {
fprintf(stderr, "Epiphany HAL initialization failed\n");
return EXIT_FAILURE;
}
if ( E_OK != e_reset_system() ) {
fprintf(stderr, "Epiphany system reset failed\n");
retval = EXIT_FAILURE;
goto err_out3;
}
fprintf(stderr, "Getting platform info\n");
if ( E_OK != e_get_platform_info(&platform) ) {
fprintf(stderr, "Failed to get Epiphany platform info\n");
retval = EXIT_FAILURE;
goto err_out3;
}
fprintf(stderr, "Platform version: %s, HAL version 0x%08x\n",
platform.version, platform.hal_ver);
// Allocate a few buffers that won't be touched.
if ( E_OK != e_shm_alloc(&mbuf, "shm_1", 4096) ) {
fprintf(stderr, "Failed to allocate shared memory. Error is %s\n",
strerror(errno));
retval = EXIT_FAILURE;
goto err_out3;
}
// Allocate a few buffers that won't be touched.
if ( E_OK != e_shm_alloc(&mbuf, "shm_2", 4096) ) {
fprintf(stderr, "Failed to allocate shared memory. Error is %s\n",
strerror(errno));
retval = EXIT_FAILURE;
goto err_out2;
}
// Allocate a buffer in shared external memory
// for message passing from eCore to host.
if ( E_OK != e_shm_alloc(&mbuf, ShmName, ShmSize) ) {
fprintf(stderr, "Failed to allocate shared memory. Error is %s\n",
strerror(errno));
retval = EXIT_FAILURE;
goto err_out1;
}
// Scribble on memory from host side
e_write(&mbuf, 0, 0, 0, (const void*)HostMsg, sizeof(HostMsg));
// Dump the shm table - we should see three valid regions
{
int i = 0;
const e_shmtable_t *tbl = e_shm_get_shmtable();
printf("Shared Memory Regions:\n");
printf("------------------------\n");
if ( tbl ) {
for ( i = 0; i < MAX_SHM_REGIONS; ++i ) {
if ( tbl->regions[i].valid ) {
printf("region %d: name = %s, paddr = %p, length=%d\n",
i, tbl->regions[i].shm_seg.name,
tbl->regions[i].shm_seg.paddr,
tbl->regions[i].shm_seg.size);
}
}
}
printf("------------------------\n");
}
for ( i = 0; i < SeqLen; ++i )
{
char buf[ShmSize];
// Draw a random core
row = rand() % platform.rows;
col = rand() % platform.cols;
coreid = (row + platform.row) * 64 + col + platform.col;
fprintf(stderr, "%3d: Message from eCore 0x%03x (%2d,%2d): ", i, coreid, row, col);
// Open the single-core workgroup and reset the core, in
// case a previous process is running. Note that we used
// core coordinates relative to the workgroup.
e_open(&dev, row, col, 1, 1);
e_reset_group(&dev);
// Load the device program onto the selected eCore
// and launch after loading.
if ( E_OK != e_load("./e_shm_test.elf", &dev, 0, 0, E_TRUE) ) {
fprintf(stderr, "Failed to load e_shm_test.elf\n");
retval = EXIT_FAILURE;
goto err_out;
}
// Wait for core program execution to finish, then
// read message from shared buffer.
usleep(100000);
e_read(&mbuf, 0, 0, 0, buf, ShmSize);
// Print the message and close the workgroup.
printf("\"%s\"\n", buf);
e_close(&dev);
}
// Release the allocated buffer and finalize the
// e-platform connection.
err_out:
e_shm_release(ShmName);
err_out2:
e_shm_release("shm_2");
err_out1:
e_shm_release("shm_1");
err_out3:
e_finalize();
return retval;
}
