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Flusher step 2: CPU and NIC options #32

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71ec1fe
Initial commit flusher
e-ago Jan 16, 2018
82b11e1
flusher inlcude, nvtx removed
e-ago Jan 16, 2018
31229e2
CU_STREAM_WAIT_VALUE_FLUSH no longer supported in CUDA 9.x. Closes #31
e-ago Jan 17, 2018
56a4e7a
Commented dump wait params useful for debug
e-ago Jan 17, 2018
b00b350
CU_STREAM_WAIT_VALUE_FLUSH code restored commented as a reminder
e-ago Jan 17, 2018
f3c4cf1
flusher env vars merged in a single one. flusher types enum instead o…
e-ago Feb 5, 2018
d058537
enum gds_flusher_type renamed
e-ago Feb 5, 2018
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2 changes: 1 addition & 1 deletion Makefile.am
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@ libgdsyncincludedir = $(includedir)/gdsync
libgdsyncinclude_HEADERS = include/gdsync/core.h include/gdsync/device.cuh include/gdsync/mlx5.h include/gdsync/tools.h

src_libgdsync_la_CFLAGS = $(AM_CFLAGS)
src_libgdsync_la_SOURCES = src/gdsync.cpp src/memmgr.cpp src/mem.cpp src/objs.cpp src/apis.cpp src/mlx5.cpp include/gdsync.h
src_libgdsync_la_SOURCES = src/gdsync.cpp src/memmgr.cpp src/mem.cpp src/objs.cpp src/apis.cpp src/mlx5.cpp src/flusher.cpp include/gdsync.h
src_libgdsync_la_LDFLAGS = -version-info 2:0:1

noinst_HEADERS = src/mem.hpp src/memmgr.hpp src/objs.hpp src/rangeset.hpp src/utils.hpp src/archutils.h src/mlnxutils.h
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13 changes: 8 additions & 5 deletions include/gdsync/core.h
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Expand Up @@ -47,11 +47,14 @@ typedef enum gds_param {
int gds_query_param(gds_param_t param, int *value);

enum gds_create_qp_flags {
GDS_CREATE_QP_DEFAULT = 0,
GDS_CREATE_QP_WQ_ON_GPU = 1<<0,
GDS_CREATE_QP_TX_CQ_ON_GPU = 1<<1,
GDS_CREATE_QP_RX_CQ_ON_GPU = 1<<2,
GDS_CREATE_QP_WQ_DBREC_ON_GPU = 1<<5,
GDS_CREATE_QP_DEFAULT = 0,
GDS_CREATE_QP_WQ_ON_GPU = 1<<0,
GDS_CREATE_QP_TX_CQ_ON_GPU = 1<<1,
GDS_CREATE_QP_RX_CQ_ON_GPU = 1<<2,
GDS_CREATE_QP_GPU_INVALIDATE_TX_CQ = 1 << 3,
GDS_CREATE_QP_GPU_INVALIDATE_RX_CQ = 1 << 4,
GDS_CREATE_QP_WQ_DBREC_ON_GPU = 1<<5,
GDS_CREATE_QP_FLUSHER = 1<<6,
};

typedef struct ibv_exp_qp_init_attr gds_qp_init_attr_t;
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6 changes: 4 additions & 2 deletions src/apis.cpp
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Expand Up @@ -49,7 +49,7 @@
#include "utils.hpp"
#include "memmgr.hpp"
//#include "mem.hpp"

#include "flusher.hpp"

//-----------------------------------------------------------------------------

Expand Down Expand Up @@ -622,7 +622,9 @@ int gds_stream_post_descriptors(CUstream stream, size_t n_descs, gds_descriptor_
// move flush to last wait in the whole batch
if (n_waits && no_network_descs_after_entry(n_descs, descs, last_wait)) {
gds_dbg("optimizing FLUSH to last wait i=%zu\n", last_wait);
move_flush = true;
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@drossetti drossetti Jan 27, 2018

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who is setting move_flush=true in the 'GPU support native flusher' case?

if( gds_use_native_flusher() ) move_flush=true;
else n_mem_ops += gds_flusher_count_op();
gds_dbg("optimizing FLUSH to last wait i=%zu, n_mem_ops: %d, flusher ops: %d\n", last_wait, n_mem_ops, gds_flusher_count_op());
}
// alternatively, remove flush for wait is next op is a wait too

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