psm_error_t psmi_am_init_internal(psm_ep_t ep)
{
int i;
psm_am_handler_fn_t *am_htable;
struct psm_am_parameters params;
psmi_am_parameters.max_handlers = INT_MAX;
psmi_am_parameters.max_nargs = INT_MAX;
psmi_am_parameters.max_request_short = INT_MAX;
psmi_am_parameters.max_reply_short = INT_MAX;
if (psmi_ep_device_is_enabled(ep, PTL_DEVID_SELF)) {
ep->ptl_self.am_get_parameters(ep, ¶ms);
psmi_am_min_parameters(&psmi_am_parameters, ¶ms);
}
if (psmi_ep_device_is_enabled(ep, PTL_DEVID_IPS)) {
ep->ptl_ips.am_get_parameters(ep, ¶ms);
psmi_am_min_parameters(&psmi_am_parameters, ¶ms);
}
if (psmi_ep_device_is_enabled(ep, PTL_DEVID_AMSH)) {
ep->ptl_amsh.am_get_parameters(ep, ¶ms);
psmi_am_min_parameters(&psmi_am_parameters, ¶ms);
}
ep->am_htable =
psmi_malloc(ep, UNDEFINED,
sizeof(psm_am_handler_fn_t) * PSMI_AM_NUM_HANDLERS);
if (ep->am_htable == NULL)
return PSM_NO_MEMORY;
am_htable = (psm_am_handler_fn_t *) ep->am_htable;
for (i = 0; i < PSMI_AM_NUM_HANDLERS; i++)
am_htable[i] = _ignore_handler;
return PSM_OK;
}
psm2_error_t
__psm2_ep_connect(psm2_ep_t ep, int num_of_epid, psm2_epid_t const *array_of_epid,
int const *array_of_epid_mask, /* can be NULL */
psm2_error_t *array_of_errors, psm2_epaddr_t *array_of_epaddr,
int64_t timeout)
{
psm2_error_t err = PSM2_OK;
ptl_ctl_t *ptlctl;
ptl_t *ptl;
int i, j, dup_idx;
int num_toconnect = 0;
int *epid_mask = NULL;
int *epid_mask_isdupof = NULL;
char *device;
uint64_t t_start = get_cycles();
uint64_t t_left;
union psmi_envvar_val timeout_intval;
PSM2_LOG_MSG("entering");
PSMI_ERR_UNLESS_INITIALIZED(ep);
PSMI_PLOCK();
/*
* Normally we would lock here, but instead each implemented ptl component
* does its own locking. This is mostly because the ptl components are
* ahead of the PSM interface in that they can disconnect their peers.
*/
if (ep == NULL || array_of_epaddr == NULL || array_of_epid == NULL ||
num_of_epid < 1) {
err = psmi_handle_error(ep, PSM2_PARAM_ERR,
"Invalid psm2_ep_connect parameters");
goto fail;
}
/* We need two of these masks to detect duplicates */
err = PSM2_NO_MEMORY;
epid_mask =
(int *)psmi_malloc(ep, UNDEFINED, sizeof(int) * num_of_epid);
if (epid_mask == NULL)
goto fail;
epid_mask_isdupof =
(int *)psmi_malloc(ep, UNDEFINED, sizeof(int) * num_of_epid);
if (epid_mask_isdupof == NULL)
goto fail;
err = PSM2_OK;
/* Eventually handle timeouts across all connects. */
for (j = 0; j < num_of_epid; j++) {
if (array_of_epid_mask != NULL && !array_of_epid_mask[j])
epid_mask[j] = 0;
else {
epid_mask[j] = 1;
array_of_errors[j] = PSM2_EPID_UNKNOWN;
array_of_epaddr[j] = NULL;
num_toconnect++;
}
epid_mask_isdupof[j] = -1;
}
psmi_getenv("PSM2_CONNECT_TIMEOUT",
"End-point connection timeout over-ride. 0 for no time-out.",
PSMI_ENVVAR_LEVEL_USER, PSMI_ENVVAR_TYPE_UINT,
(union psmi_envvar_val)0, &timeout_intval);
if (getenv("PSM2_CONNECT_TIMEOUT")) {
timeout = timeout_intval.e_uint * SEC_ULL;
} else if (timeout > 0) {
/* The timeout parameter provides the minimum timeout. A heuristic
* is used to scale up the timeout linearly with the number of
* endpoints, and we allow one second per 100 endpoints. */
timeout = max(timeout, (num_toconnect * SEC_ULL) / 100);
}
if (timeout > 0 && timeout < PSMI_MIN_EP_CONNECT_TIMEOUT)
timeout = PSMI_MIN_EP_CONNECT_TIMEOUT;
_HFI_PRDBG("Connect to %d endpoints with time-out of %.2f secs\n",
num_toconnect, (double)timeout / 1e9);
/* Look for duplicates in input array */
for (i = 0; i < num_of_epid; i++) {
for (j = i + 1; j < num_of_epid; j++) {
if (array_of_epid[i] == array_of_epid[j] &&
epid_mask[i] && epid_mask[j]) {
epid_mask[j] = 0; /* don't connect more than once */
epid_mask_isdupof[j] = i;
}
}
}
for (i = 0; i < PTL_MAX_INIT; i++) {
if (ep->devid_enabled[i] == -1)
continue;
/* Set up the right connect ptrs */
switch (ep->devid_enabled[i]) {
case PTL_DEVID_IPS:
ptlctl = &ep->ptl_ips;
ptl = ep->ptl_ips.ptl;
device = "ips";
break;
case PTL_DEVID_AMSH:
ptlctl = &ep->ptl_amsh;
ptl = ep->ptl_amsh.ptl;
device = "amsh";
break;
case PTL_DEVID_SELF:
ptlctl = &ep->ptl_self;
ptl = ep->ptl_self.ptl;
device = "self";
break;
default:
device = "unknown";
ptlctl = &ep->ptl_ips; /*no-unused */
ptl = ep->ptl_ips.ptl; /*no-unused */
device = "ips"; /*no-unused */
psmi_handle_error(PSMI_EP_NORETURN, PSM2_INTERNAL_ERR,
"Unknown/unhandled PTL id %d\n",
ep->devid_enabled[i]);
break;
}
t_left = psmi_cycles_left(t_start, timeout);
_HFI_VDBG("Trying to connect with device %s\n", device);
if ((err = ptlctl->ep_connect(ptl, num_of_epid, array_of_epid,
epid_mask, array_of_errors,
array_of_epaddr,
cycles_to_nanosecs(t_left)))) {
_HFI_PRDBG("Connect failure in device %s err=%d\n",
device, err);
goto connect_fail;
}
/* Now process what's been connected */
for (j = 0; j < num_of_epid; j++) {
dup_idx = epid_mask_isdupof[j];
if (!epid_mask[j] && dup_idx == -1)
continue;
if (dup_idx != -1) { /* dup */
array_of_epaddr[j] = array_of_epaddr[dup_idx];
array_of_errors[j] = array_of_errors[dup_idx];
epid_mask_isdupof[j] = -1;
}
if (array_of_errors[j] == PSM2_OK) {
epid_mask[j] = 0; /* don't try on next ptl */
ep->connections++;
}
}
}
for (i = 0; i < num_of_epid; i++) {
ptl_ctl_t *c = NULL;
if (array_of_epid_mask != NULL && !array_of_epid_mask[i])
continue;
/* If we see unreachable here, that means some PTLs were not enabled */
if (array_of_errors[i] == PSM2_EPID_UNREACHABLE) {
err = PSM2_EPID_UNREACHABLE;
break;
}
psmi_assert_always(array_of_epaddr[i] != NULL);
c = array_of_epaddr[i]->ptlctl;
psmi_assert_always(c != NULL);
_HFI_VDBG("%-20s DEVICE %s (%p)\n",
psmi_epaddr_get_name(array_of_epid[i]),
c == &ep->ptl_ips ? "hfi" :
(c == &ep->ptl_amsh ? "amsh" : "self"),
(void *)array_of_epaddr[i]->ptlctl->ptl);
}
connect_fail:
/* If the error is a timeout (at worse) and the client is OPA MPI,
* just return timeout to let OPA MPI handle the hostnames that
* timed out */
if (err != PSM2_OK) {
char errbuf[PSM2_ERRSTRING_MAXLEN];
size_t len;
int j = 0;
if (err == PSM2_EPID_UNREACHABLE) {
char *deverr = "of an incorrect setting";
char *eperr = " ";
char *devname = NULL;
if (!psmi_ep_device_is_enabled(ep, PTL_DEVID_AMSH)) {
deverr =
"there is no shared memory PSM device (shm)";
eperr = " shared memory ";
} else
if (!psmi_ep_device_is_enabled(ep, PTL_DEVID_IPS)) {
deverr =
"there is no OPA PSM device (hfi)";
eperr = " OPA ";
}
len = snprintf(errbuf, sizeof(errbuf) - 1,
"Some%sendpoints could not be connected because %s "
"in the currently enabled PSM_DEVICES (",
eperr, deverr);
for (i = 0; i < PTL_MAX_INIT && len < sizeof(errbuf) - 1;
i++) {
switch (ep->devid_enabled[i]) {
case PTL_DEVID_IPS:
devname = "hfi";
break;
case PTL_DEVID_AMSH:
devname = "shm";
break;
case PTL_DEVID_SELF:
default:
devname = "self";
break;
}
len +=
snprintf(errbuf + len,
sizeof(errbuf) - len - 1, "%s,",
devname);
}
if (len < sizeof(errbuf) - 1 && devname != NULL)
/* parsed something, remove trailing comma */
errbuf[len - 1] = ')';
} else
len = snprintf(errbuf, sizeof(errbuf) - 1,
"%s", err == PSM2_TIMEOUT ?
"Dectected connection timeout" :
psm2_error_get_string(err));
/* first pass, look for all nodes with the error */
for (i = 0; i < num_of_epid && len < sizeof(errbuf) - 1; i++) {
if (array_of_epid_mask != NULL
&& !array_of_epid_mask[i])
continue;
if (array_of_errors[i] == PSM2_OK)
continue;
if (array_of_errors[i] == PSM2_EPID_UNREACHABLE &&
err != PSM2_EPID_UNREACHABLE)
continue;
if (err == array_of_errors[i]) {
len +=
snprintf(errbuf + len,
sizeof(errbuf) - len - 1, "%c %s",
j == 0 ? ':' : ',',
psmi_epaddr_get_hostname
(array_of_epid[i]));
j++;
}
}
errbuf[sizeof(errbuf) - 1] = '\0';
err = psmi_handle_error(ep, err, errbuf);
}
fail:
PSMI_PUNLOCK();
if (epid_mask != NULL)
psmi_free(epid_mask);
if (epid_mask_isdupof != NULL)
psmi_free(epid_mask_isdupof);
PSM2_LOG_MSG("leaving");
return err;
}
void *psmi_sysbuf_alloc(uint32_t alloc_size)
{
struct psmi_mem_ctrl *mm_handler = psmi_sysbuf.handler_index;
struct psmi_mem_block_ctrl *new_block;
int replenishing;
while (mm_handler->block_size < alloc_size)
mm_handler++;
replenishing = mm_handler->replenishing_rate;
if (mm_handler->current_available == 0) { /* allocate more buffers */
if (mm_handler->flags & MM_FLAG_TRANSIENT) {
uint32_t newsz = alloc_size +
sizeof(struct psmi_mem_block_ctrl) +
PSM_VALGRIND_REDZONE_SZ;
new_block = psmi_malloc(PSMI_EP_NONE,
UNEXPECTED_BUFFERS, newsz);
if (new_block) {
new_block->mem_handler = mm_handler;
new_block++;
mm_handler->total_alloc++;
psmi_sysbuf.mem_ctrl_total_bytes += newsz;
VALGRIND_MEMPOOL_ALLOC(&psmi_sysbuf, new_block,
alloc_size);
}
return new_block;
}
do {
uint32_t newsz =
mm_handler->block_size +
sizeof(struct psmi_mem_block_ctrl) +
PSM_VALGRIND_REDZONE_SZ;
new_block = psmi_malloc(PSMI_EP_NONE,
UNEXPECTED_BUFFERS, newsz);
psmi_sysbuf.mem_ctrl_total_bytes += newsz;
if (new_block) {
mm_handler->current_available++;
mm_handler->total_alloc++;
new_block->next = mm_handler->free_list;
mm_handler->free_list = new_block;
}
} while (--replenishing && new_block);
}
if (mm_handler->current_available) {
mm_handler->current_available--;
new_block = mm_handler->free_list;
mm_handler->free_list = new_block->next;
new_block->mem_handler = mm_handler;
new_block++;
VALGRIND_MEMPOOL_ALLOC(&psmi_sysbuf, new_block,
mm_handler->block_size);
return new_block;
}
return NULL;
}
