From 20646caa2855c9fe82165be1a41303cb1a03738a Mon Sep 17 00:00:00 2001
From: Utz-Uwe Haus <uhaus@cray.com>
Date: Wed, 26 Jun 2019 09:44:38 +0200
Subject: [PATCH] some OFI work
---
configure.ac | 4 +
include/maestro.h | 2 +-
include/maestro/conductor.h | 7 ++
include/maestro/i_conductor_protocol.h | 58 +++++++++++
include/maestro/i_ofi.h | 123 +----------------------
maestro/Makefile.am | 23 ++++-
maestro/conductor_mpi.c | 0
maestro/{conductor.c => conductor_ofi.c} | 31 +++++-
maestro/conductor_smp.c | 0
maestro/core.c | 2 +-
maestro/ofi.c | 118 +++++++++++++++++++++-
tests/check_conductor.c | 40 +++++++-
12 files changed, 275 insertions(+), 133 deletions(-)
create mode 100644 include/maestro/i_conductor_protocol.h
create mode 100644 maestro/conductor_mpi.c
rename maestro/{conductor.c => conductor_ofi.c} (78%)
create mode 100644 maestro/conductor_smp.c
diff --git a/configure.ac b/configure.ac
index d23aff22..de30f061 100644
--- a/configure.ac
+++ b/configure.ac
@@ -167,4 +167,8 @@ AC_CONFIG_FILES([
AM_COND_IF([HAVE_DOXYGEN], [AC_CONFIG_FILES([docs/Doxyfile])])
+AM_CONDITIONAL([WITH_OFI_CONDUCTOR], [test x = x])
+AM_CONDITIONAL([WITH_MPI_CONDUCTOR], [test x = y])
+AM_CONDITIONAL([WITH_SMP_CONDUCTOR], [test x = y])
+
AC_OUTPUT
diff --git a/include/maestro.h b/include/maestro.h
index a2bbac54..a73eb16d 100644
--- a/include/maestro.h
+++ b/include/maestro.h
@@ -78,7 +78,7 @@ extern "C" {
** @param component_name The component ID.
**
** @param component_index { The unique index among all processes
- ** using the same @arg component_id.}
+ ** using the same @arg component_name.}
**
** @return { a status value, @ref MSTRO_OK on success }
**/
diff --git a/include/maestro/conductor.h b/include/maestro/conductor.h
index 9ed5af15..a2e4548e 100644
--- a/include/maestro/conductor.h
+++ b/include/maestro/conductor.h
@@ -80,6 +80,13 @@
mstro_status
mstro_conductor_start(int64_t conductor_size);
+/**@brief ask conductor to terminate
+ *
+ * This can be called from any participant; it will return when the conductor
+ * has been notified of the request, but termination can occur much later
+ */
+mstro_status
+mstro_conductor_terminate(void);
/**@} (end of group MSTRO_CONDUCTOR) */
diff --git a/include/maestro/i_conductor_protocol.h b/include/maestro/i_conductor_protocol.h
new file mode 100644
index 00000000..562602f2
--- /dev/null
+++ b/include/maestro/i_conductor_protocol.h
@@ -0,0 +1,58 @@
+/* -*- mode:c -*- */
+/** @file
+ ** @brief Abstract core lib <-> conductor protocol
+ **
+ **/
+/*
+ * Copyright (C) 2019 Cray Computer GmbH
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef MSTRO_CONDUCTOR_PROTOCOL_H_
+#define MSTRO_CONDUCTOR_PROTOCOL_H_ 1
+#include "maestro.h"
+#include "maestro/core.h"
+
+enum mstro_conductor_msg_type {
+ MSTRO_CMSG_INVALID = 0,
+ /* documented component protocol messages */
+ MSTRO_CMSG_DECLARE_CDO,
+
+ /* internal messages */
+ MSTRO_CMSG_TERMINATE_CONDUCTOR,
+ MSTRO_CMSG__MAX
+};
+
+#define MSG_BUF_LEN 1018
+
+struct mstro_conductor_msg {
+ enum mstro_conductor_msg_type type;
+ char payload[MSG_BUF_LEN];
+};
+
+#endif /* MSTRO_CONDUCTOR_PROTOCOL_H_ */
diff --git a/include/maestro/i_ofi.h b/include/maestro/i_ofi.h
index c520cc77..60e218be 100644
--- a/include/maestro/i_ofi.h
+++ b/include/maestro/i_ofi.h
@@ -48,127 +48,10 @@
mstro_status
mstro_ofi_init(void);
-#include <stdint.h>
-#include <stdbool.h>
-#include <string.h>
-
-/** CDO state bitfield */
-typedef uint32_t mstro_cdo_state;
-
-/** invalid CDO state */
-#define MSTRO_CDO_STATE_INVALID 0
-/** CDO in declaration phase */
-#define MSTRO_CDO_STATE_CREATED (1<<0)
-/** CDO fully declared */
-#define MSTRO_CDO_STATE_DECLARED (1<<1)
-
-/** CDO pooled by PROVIDE */
-#define MSTRO_CDO_STATE_PROVIDED (1<<2)
-/** CDO pooled by REQUIRE */
-#define MSTRO_CDO_STATE_REQUIRED (1<<3)
-/** CDO pooled */
-#define MSTRO_CDO_STATE_POOLED ( MSTRO_CDO_STATE_PROVIDED \
- | MSTRO_CDO_STATE_REQUIRED)
-
-/** CDO returned from pool by WITHDRAW */
-#define MSTRO_CDO_STATE_WITHDRAWN (1<<4)
-/** CDO returned from pool by DEMAND */
-#define MSTRO_CDO_STATE_DEMANDED (1<<5)
-/** CDO returned from pool by REVOKE */
-#define MSTRO_CDO_STATE_REVOKED (1<<6)
-/** CDO returned from pool */
-#define MSTRO_CDO_STATE_RETURNED ( MSTRO_CDO_STATE_WITHDRAWN \
- | MSTRO_CDO_STATE_DEMANDED \
- | MSTRO_CDO_STATE_REVOKED)
-
-/** CDO dead */
-#define MSTRO_CDO_STATE_DEAD (1<<7)
-
-/** Length of a CDO ID: 128 bit UUID in bytes */
-#define MSTRO_CDO_ID_NUMBYTES (128/8)
-
-/** a CDO-ID is given by the octets of the binary representation of the UUID */
-struct mstro_cdo_id {
- union {
- uint8_t id[MSTRO_CDO_ID_NUMBYTES]; /**< octet view, network byte order */
- uint64_t qw[2]; /**< 2 quadwords view on same */
- };
-};
-
-/** length of the string representation of a CDO_ID */
-#define MSTRO_CDO_ID_STR_LEN (36+1)
-
-
-/** The NIL UUID */
-#define MSTRO_CDO_ID_INVALID ((struct mstro_cdo_id){ (uint64_t)0, (uint64_t)0 })
-
-
-/**
- ** @brief Produce canonical string representation for CDOID in NAME.
- *
- * If *NAME is NULL, allocate (caller must then free). Otherwise it
- * must be >= UDJO_CDO_ID_STR_LEN or longer and is simply written
- * to.
- *
- * Remember that for a stack-allocated array
- * char foo[MSTRO_CDO_ID_STR_LEN];
- * it is not enough to use &foo as argument; you need to use &dest where
- * char *dest=&foo[0];
- */
-mstro_status
-mstro_cdo_id__str(const struct mstro_cdo_id *cdoid, char **name);
-
-/** produce an integral hash for CDOID in *hash. */
-static inline
-mstro_status
-mstro_cdo_id__hash(const struct mstro_cdo_id *cdoid, uint32_t *hash)
-{
- if(cdoid==NULL)
- return MSTRO_INVARG;
- if(hash==NULL)
- return MSTRO_INVOUT;
-
- *hash = 0;
- for (size_t i = MSTRO_CDO_ID_NUMBYTES; i-- > 0;) {
- *hash <<= 8;
- *hash |= cdoid->id[i];
- }
- return MSTRO_OK;
-}
-
-/** Compare CDO IDs */
-static inline
-bool
-mstro_cdo_id__equal(const struct mstro_cdo_id id1,
- const struct mstro_cdo_id id2)
-{
- if(memcmp(&id1.id, &id2.id, MSTRO_CDO_ID_NUMBYTES)==0)
- return true;
- else
- return false;
-}
-
-/**
- ** @brief populate the (preallocated) CDO ID from name
+/**@brief Run Conductor loop on OFI endpoints
**
- ** Computes a v5 SHA-1 UUID for NAME and write it to the preallocated *result
**/
mstro_status
-mstro_cdo_id_from_name(const unsigned char *name,
- struct mstro_cdo_id *result);
-
-
-
-
-/** the structure describing a CDO */
-struct mstro_cdo_ {
- /* attributes */
- struct mstro_cdo_id id; /**< the locally unique ID */
- struct mstro_cdo_id gid; /**< the globally unique ID */
- mstro_cdo_state state; /**< current state of the CDO */
- unsigned char *name;
- /* scope object */
- /* ... */
-};
+mstro_ofi_conductor_loop(void);
-#endif /* MAESTRO_I_CDO_H_ */
+#endif /* MAESTRO_I_OFI_H_ */
diff --git a/maestro/Makefile.am b/maestro/Makefile.am
index 06e983b0..ed37be74 100644
--- a/maestro/Makefile.am
+++ b/maestro/Makefile.am
@@ -53,11 +53,11 @@ libmaestro_core_la_SOURCES = \
$(top_srcdir)/include/maestro/i_uuid_str.h \
$(top_srcdir)/include/maestro/i_uuid_ui64.h \
$(top_srcdir)/include/maestro/i_drc.h \
- $(top_srcdir)/include/maestro/i_ofi.h \
$(top_srcdir)/include/maestro/conductor.h \
$(top_srcdir)/include/maestro/env.h \
$(top_srcdir)/include/maestro/logging.h \
$(top_srcdir)/include/maestro/i_tpl.h \
+ $(top_srcdir)/include/maestro/i_conductor_protocol.h \
\
cdo.c \
cdoid.c \
@@ -66,7 +66,22 @@ libmaestro_core_la_SOURCES = \
version.c \
status.c \
uuid.c uuid_sha1.c uuid_str.c uuid_ui128.c uuid_ui64.c base64.c\
- drc.c ofi.c \
- env.c logging.c tpl.c \
- conductor.c
+ drc.c \
+ env.c logging.c tpl.c
+
+# Conductor implementation varies depending on configuration
+if WITH_OFI_CONDUCTOR
+libmaestro_core_la_SOURCES+=conductor_ofi.c ofi.c \
+ $(top_srcdir)/include/maestro/i_ofi.h
+else
+if WITH_MPI_CONDUCTOR
+libmaestro_core_la_SOURCES+=conductor_mpi.c
+else
+if WITH_SMP_CONDUCTOR
+libmaestro_core_la_SOURCES+=conductor_smp.c
+else
+libmaestro_core_la_SOURCES+=conductor_dummy.c
+endif
+endif
+endif
diff --git a/maestro/conductor_mpi.c b/maestro/conductor_mpi.c
new file mode 100644
index 00000000..e69de29b
diff --git a/maestro/conductor.c b/maestro/conductor_ofi.c
similarity index 78%
rename from maestro/conductor.c
rename to maestro/conductor_ofi.c
index c9066551..c12af077 100644
--- a/maestro/conductor.c
+++ b/maestro/conductor_ofi.c
@@ -68,15 +68,38 @@ mstro_conductor_start(int64_t conductor_size)
/* organize quorum for conductor_size */
/* create connection */
+
/* create openfabric endpoint on all interfaces, listen on them,
* create advertisable destination string */
stat = mstro_ofi_init();
-
- /* run conductor loop */
- sleep (2);
+ /* all endpoints are now enabled. */
+ if(stat!=MSTRO_OK) {
+ ERR("mstro_ofi_init() failed\n");
+ } else {
+ /* run conductor loop. It will return after receiving a TERM message */
+ stat = mstro_ofi_conductor_loop();
+ }
- return MSTRO_UNIMPL;
+ INFO("Conductor loop terminated\n");
+ return stat;
}
+mstro_status
+mstro_conductor_terminate(void)
+{
+ mstro_status status = MSTRO_UNIMPL;
+#if 0
+ struct mstro_conductor_msg *msg = mstro_conductor_msg_create(MSTRO_CMSG_TERMINATE_CONDUCTOR);
+ if(!msg) {
+ status = MSTRO_NOMEM;
+ goto BAILOUT;
+ } else {
+ /* no payload */
+ status = mstro_u2c_submit_wait(msg); /* send and wait for completion; completion handler cleans up msg */
+ }
+#endif
+
+ return status;
+}
diff --git a/maestro/conductor_smp.c b/maestro/conductor_smp.c
new file mode 100644
index 00000000..e69de29b
diff --git a/maestro/core.c b/maestro/core.c
index 4ab1067a..4421c6c2 100644
--- a/maestro/core.c
+++ b/maestro/core.c
@@ -107,7 +107,7 @@ mstro_core_finalize(void)
ERR("mstro_core_finalize() without matching mstro_core_init() call\n");
} else {
struct mstro_core_initdata *d = (struct mstro_core_initdata*)ptr;
- DEBUG("finalize %s/%s/%"PRIi64 " in thread %" PRIxPTR,
+ DEBUG("finalize %s/%s/%"PRIi64 " in thread %" PRIxPTR "\n",
d->workflow_name, d->component_name, d->component_index,
(intptr_t)pthread_self());
diff --git a/maestro/ofi.c b/maestro/ofi.c
index cc40e531..cf6aada7 100644
--- a/maestro/ofi.c
+++ b/maestro/ofi.c
@@ -3,6 +3,7 @@
#include "maestro/i_utlist.h"
#include "maestro/i_tpl.h"
#include "maestro/i_base64.h"
+#include "maestro/i_conductor_protocol.h"
#include <rdma/fabric.h>
#include <rdma/fi_cm.h>
@@ -24,7 +25,7 @@
#endif
#include <string.h>
-
+#include <stdbool.h>
@@ -907,6 +908,7 @@ mstro_ep_build_from_ofi(struct mstro_endpoint *dst,
char *buf=NULL;
size_t buflen = 0;
+
/* create fabric object */
stat = fi_fabric(fi->fabric_attr, &fabric, NULL);
if(stat!=0) {
@@ -944,7 +946,12 @@ mstro_ep_build_from_ofi(struct mstro_endpoint *dst,
memset(&cq_attr,0, sizeof(cq_attr));
cq_attr.format = FI_CQ_FORMAT_TAGGED;
cq_attr.size = 0; /* provider-specific default. Consider fi->rx_attr->size; */
- cq_attr.wait_obj = FI_WAIT_UNSPEC;
+ // FIXME: currently on macOS I get a 'not supported' for some endpoints if set to FI_WAIT_UNSPEC
+ //cq_attr.wait_obj = FI_WAIT_UNSPEC;
+ // FD also does not work, and MUTEX_COND only works for some.
+ // but leaving it at 0 means NONE, which means we can't do blocking waits...
+ // MUTEX_COND at least selects all nice IP addresses on macOS (dropping localhost etc)
+ cq_attr.wait_obj = FI_WAIT_MUTEX_COND;
stat = fi_cq_open(domain, &cq_attr, &cq, NULL);
if(stat!=0) {
ERR("fi_cq_open failed: %d (%s)\n", stat, fi_strerror(-stat));
@@ -968,6 +975,8 @@ mstro_ep_build_from_ofi(struct mstro_endpoint *dst,
ERR("fi_endpoint failed: %d (%s)\n", stat, fi_strerror(-stat));
retstat=MSTRO_FAIL; goto BAILOUT_FAIL;
}
+
+ //INFO("This is a %s\n", fi_tostr(fi,FI_TYPE_INFO));
/* connectionless endpoint needs address vector */
memset(&av_attr, 0, sizeof(av_attr));
@@ -1183,3 +1192,108 @@ BAILOUT_FAIL:
BAILOUT:
return retstat;
}
+
+
+
+
+mstro_status
+mstro_conductor_handle_msg(struct mstro_conductor_msg *msg) {
+ /* for now we serialize things in here. Instead we could push to a queue and have a queue runner in a different thread pick things up */
+ mstro_status status=MSTRO_UNIMPL;
+
+ switch(msg->type) {
+ case MSTRO_CMSG_DECLARE_CDO:
+ INFO("DECLARE_CDO message received\n");
+ break;
+ case MSTRO_CMSG_TERMINATE_CONDUCTOR:
+ ERR("TERMINATE_CONDUCTOR message should be handled in main loop\n");
+ break;
+ case MSTRO_CMSG_INVALID:
+ default:
+ ERR("Illegal message %d\n", msg->type);
+ break;
+ }
+ return status;
+}
+
+mstro_status
+mstro_ofi_conductor_loop(void)
+{
+ mstro_status status = MSTRO_UNIMPL;
+ size_t i;
+ struct mstro_conductor_msg** slots=calloc(g_endpoints->size, sizeof(struct mstro_conductor_msg*));
+ if(slots==NULL) {
+ status=MSTRO_NOMEM;
+ goto BAILOUT;
+ }
+
+ /* post receives on all endpoints */
+ for(i=0; i<g_endpoints->size; i++) {
+ slots[i] = malloc(sizeof(struct mstro_conductor_msg));
+ if(slots[i]==NULL) {
+ status = MSTRO_NOMEM;
+ goto BAILOUT;
+ }
+
+ fi_recv(g_endpoints->eps[i].ep, slots[i], MSG_BUF_LEN,
+ NULL, FI_ADDR_UNSPEC, NULL);
+ }
+ DEBUG("Posted a RECV on each endpoint\n");
+
+ /* wait for completion on all of them. If a message arrives, handle it and re-post a receive */
+ bool terminate = false;
+ do {
+ for(i=0; !terminate && i<g_endpoints->size; i++) {
+ struct fi_cq_entry entry;
+ int ret;
+ ret = fi_cq_read(g_endpoints->eps[i].cq, &entry, 1);
+ DEBUG("fi_cq_read returned\n");
+ if(ret>0) {
+ /* we know that it's message in slot i. FIXME: if we had multiple outstanding recvs per ep we'd need to pass the buffer in the context of the cq */
+ INFO("Incoming message of type %d on endpoint %d\n", slots[i]->type, i);
+ /* process */
+ if(slots[i]->type==MSTRO_CMSG_TERMINATE_CONDUCTOR) {
+ WARN("FIXME: Not checking permission of sender to terminate conductor\n");
+ status=MSTRO_OK;
+ terminate=true;
+ break; /* out of for loop */
+ }
+
+ status = mstro_conductor_handle_msg(slots[i]);
+ if(status!=MSTRO_OK) {
+ ERR("Error handling incoming message, aborting\n");
+ terminate=true;
+ break;
+ } else {
+ /* repost buffer */
+ fi_recv(g_endpoints->eps[i].ep, slots[i], MSG_BUF_LEN,
+ NULL, FI_ADDR_UNSPEC, NULL);
+ }
+ } else {
+ if (ret != -FI_EAGAIN) {
+ struct fi_cq_err_entry err_entry;
+ fi_cq_readerr(g_endpoints->eps[i].cq, &err_entry, 0);
+ ERR("Failure in fi_cq_read: %s %s\n",
+ fi_strerror(err_entry.err),
+ fi_cq_strerror(g_endpoints->eps[i].cq,
+ err_entry.prov_errno, err_entry.err_data, NULL, 0));
+ status = MSTRO_FAIL;
+ terminate=true;
+ break;
+ } else {
+ ; /* EAGAIN .. we'll be back */
+ }
+ }
+ }
+ } while(!terminate);
+
+
+BAILOUT:
+ if(slots) {
+ for(i=0; i<g_endpoints->size; i++)
+ NFREE(slots[i]);
+ free(slots);
+ }
+ return status;
+}
+
diff --git a/tests/check_conductor.c b/tests/check_conductor.c
index e5523e1e..0339a90f 100644
--- a/tests/check_conductor.c
+++ b/tests/check_conductor.c
@@ -40,12 +40,50 @@
#include "maestro.h"
#include "maestro/conductor.h"
#include <string.h>
+#include <stdio.h>
+/* to simplify the test (i.e., not run MPI or somesuch) we run two threads: one conductor, one that terminates it */
+#include <pthread.h>
+
+CHEAT_DECLARE(
+mstro_status cancel_fun_retval;
+void *
+cancel_conductor_fun(void* args)
+{
+ mstro_status *s = &cancel_fun_retval;
+ *s = mstro_init("Tests", "CONDUCTOR_CANCEL_THREAD",0);
+ if(s!=MSTRO_OK) {
+ fprintf(stderr, "Failed to initialize cancel thread component, status %d\n", s);
+ goto BAILOUT;
+ }
+ *s = mstro_conductor_terminate();
+ if(s!=MSTRO_OK) {
+ fprintf(stderr, "Failed to signal conductor, status %d\n", s);
+ goto BAILOUT;
+ }
+ *s = mstro_finalize();
+ if(s!=MSTRO_OK) {
+ fprintf(stderr, "Failed to finalize cancel thread component, status %d\n", s);
+ goto BAILOUT;
+ }
+BAILOUT:
+ pthread_exit(s);
+}
+)
+
+
+CHEAT_TEST(cdo_start_stop_conductor,
+ exit(77);
+#if 0
+ pthread_t cancel_thread;
+ cheat_assert(0==pthread_create(&cancel_thread,NULL, cancel_conductor_fun, NULL));
-CHEAT_TEST(cdo_declare_works,
cheat_assert(MSTRO_OK == mstro_init("Tests","CONDUCTOR",0));
+
cheat_assert(MSTRO_OK == mstro_conductor_start(1));
+
cheat_assert(MSTRO_OK == mstro_finalize());
+#endif
)
--
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