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|
/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "ad_panfs.h"
#include <string.h>
#include <pan_fs_client_cw_mode.h>
#define TEMP_BUFFER_SIZE 64
void ADIOI_PANFS_Open6(ADIO_File fd, int *error_code)
{
char *value;
int perm, old_mask, amode, flag;
static char myname[] = "ADIOI_PANFS_OPEN6";
if (fd->perm == ADIO_PERM_NULL) {
old_mask = umask(022);
umask(old_mask);
perm = ~old_mask & 0666;
} else
perm = fd->perm;
amode = 0;
if (fd->access_mode & ADIO_CREATE) {
pan_fs_client_layout_agg_type_t layout_type = PAN_FS_CLIENT_LAYOUT_TYPE__DEFAULT;
unsigned long int layout_stripe_unit = 0;
unsigned long int layout_parity_stripe_width = 0;
unsigned long int layout_parity_stripe_depth = 0;
unsigned long int layout_total_num_comps = 0;
unsigned long int layout_max_faults = 2;
pan_fs_client_layout_visit_t layout_visit_policy = PAN_FS_CLIENT_LAYOUT_VISIT__ROUND_ROBIN;
pan_fs_client_raidn_encoding_t layout_encoding = PAN_FS_CLIENT_LAYOUT_RAIDN_ENCODING_RS;
int myrank;
MPI_Comm_rank(fd->comm, &myrank);
*error_code = MPI_SUCCESS;
value = (char *) ADIOI_Malloc((MPI_MAX_INFO_VAL + 1) * sizeof(char));
ADIOI_Info_get(fd->info, "panfs_layout_type", MPI_MAX_INFO_VAL, value, &flag);
if (flag) {
layout_type = strtoul(value, NULL, 10);
}
ADIOI_Info_get(fd->info, "panfs_layout_stripe_unit", MPI_MAX_INFO_VAL, value, &flag);
if (flag) {
layout_stripe_unit = strtoul(value, NULL, 10);
}
ADIOI_Info_get(fd->info, "panfs_layout_total_num_comps", MPI_MAX_INFO_VAL, value, &flag);
if (flag) {
layout_total_num_comps = strtoul(value, NULL, 10);
}
ADIOI_Info_get(fd->info, "panfs_layout_parity_stripe_width", MPI_MAX_INFO_VAL,
value, &flag);
if (flag) {
layout_parity_stripe_width = strtoul(value, NULL, 10);
}
ADIOI_Info_get(fd->info, "panfs_layout_parity_stripe_depth", MPI_MAX_INFO_VAL,
value, &flag);
if (flag) {
layout_parity_stripe_depth = strtoul(value, NULL, 10);
}
ADIOI_Info_get(fd->info, "panfs_layout_max_faults", MPI_MAX_INFO_VAL, value, &flag);
if (flag) {
layout_max_faults = strtoul(value, NULL, 10);
}
ADIOI_Info_get(fd->info, "panfs_layout_visit_policy", MPI_MAX_INFO_VAL, value, &flag);
if (flag) {
layout_visit_policy = strtoul(value, NULL, 10);
}
ADIOI_Info_get(fd->info, "panfs_layout_encoding", MPI_MAX_INFO_VAL, value, &flag);
if (flag) {
layout_encoding = strtoul(value, NULL, 10);
}
ADIOI_Free(value);
amode = amode | O_CREAT;
/* Check for valid set of hints
*
* Note that RAID0 has been dropped. In the event PAN_FS_CLIENT_LAYOUT_TYPE__RAID0
* enumeraion no longer exists, the following check will still be correct.
*
* The enumerations looks as follows:
*
* enum pan_fs_client_layout_agg_type_e {
* PAN_FS_CLIENT_LAYOUT_TYPE__INVALID = 0, - *INVALID
* PAN_FS_CLIENT_LAYOUT_TYPE__DEFAULT = 1, - VALID
* PAN_FS_CLIENT_LAYOUT_TYPE__RAID0 = 2, - *INVALID
* PAN_FS_CLIENT_LAYOUT_TYPE__RAID1_5_PARITY_STRIPE = 3, - VALID
* PAN_FS_CLIENT_LAYOUT_TYPE__RAID10 = 4, - VALID
* PAN_FS_CLIENT_LAYOUT_TYPE__RAIDN_PARITY_STRIPE = 5 - VALID
* };
*/
if (((layout_type < PAN_FS_CLIENT_LAYOUT_TYPE__RAID1_5_PARITY_STRIPE) &&
(layout_type != PAN_FS_CLIENT_LAYOUT_TYPE__DEFAULT)) ||
(layout_type > PAN_FS_CLIENT_LAYOUT_TYPE__RAIDN_PARITY_STRIPE)) {
FPRINTF(stderr, "%s: panfs_layout_type is not a valid value: %u.\n", myname,
layout_type);
MPI_Abort(MPI_COMM_WORLD, 1);
}
if (layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAIDN_PARITY_STRIPE) {
if ((layout_stripe_unit == 0) ||
(layout_parity_stripe_width == 0) ||
(layout_parity_stripe_depth == 0) || (layout_total_num_comps == 0)) {
if (layout_stripe_unit == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_stripe_unit hint which is necessary to specify a valid RAIDN parity stripe layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
if (layout_total_num_comps == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_total_num_comps hint which is necessary to specify a valid RAIDN parity stripe layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
if (layout_parity_stripe_width == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_parity_stripe_width hint which is necessary to specify a valid RAIDN parity stripe layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
if (layout_parity_stripe_depth == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_parity_stripe_depth hint which is necessary to specify a valid RAIDN parity stripe layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
MPI_Abort(MPI_COMM_WORLD, 1);
}
/* as of 6.0.x release, we only support max_faults == 2 */
if (layout_max_faults != 2) {
FPRINTF(stderr,
"%s: panfs_layout_max_faults is not a valid value. Setting default of 2\n",
myname);
layout_max_faults = 2;
}
/* as of 6.0.x release, we only support RS enconding */
if (layout_encoding != PAN_FS_CLIENT_LAYOUT_RAIDN_ENCODING_RS) {
FPRINTF(stderr,
"%s: panfs_layout_encoding is not a valid value: %u. Setting to default of %u\n",
myname, layout_encoding, PAN_FS_CLIENT_LAYOUT_RAIDN_ENCODING_RS);
layout_encoding = PAN_FS_CLIENT_LAYOUT_RAIDN_ENCODING_RS;
}
}
if (layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAID1_5_PARITY_STRIPE) {
if ((layout_stripe_unit == 0) ||
(layout_parity_stripe_width == 0) ||
(layout_parity_stripe_depth == 0) || (layout_total_num_comps == 0)) {
if (layout_stripe_unit == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_stripe_unit hint which is necessary to specify a valid RAID5 parity stripe layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
if (layout_total_num_comps == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_total_num_comps hint which is necessary to specify a valid RAID5 parity stripe layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
if (layout_parity_stripe_width == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_parity_stripe_width hint which is necessary to specify a valid RAID5 parity stripe layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
if (layout_parity_stripe_depth == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_parity_stripe_depth hint which is necessary to specify a valid RAID5 parity stripe layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
MPI_Abort(MPI_COMM_WORLD, 1);
}
if ((layout_visit_policy < PAN_FS_CLIENT_LAYOUT_VISIT__ROUND_ROBIN) ||
(layout_visit_policy > PAN_FS_CLIENT_LAYOUT_VISIT__ROUND_ROBIN_WITH_HASHED_OFFSET))
{
FPRINTF(stderr, "%s: panfs_layout_visit_policy is not a valid value: %u.\n", myname,
layout_visit_policy);
MPI_Abort(MPI_COMM_WORLD, 1);
}
}
if (layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAID10) {
if ((layout_stripe_unit == 0) || (layout_total_num_comps == 0)) {
if (layout_stripe_unit == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_stripe_unit hint which is necessary to specify a valid RAID10 layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
if (layout_total_num_comps == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_total_num_comps hint which is necessary to specify a valid RAID10 layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
MPI_Abort(MPI_COMM_WORLD, 1);
}
if ((layout_visit_policy < PAN_FS_CLIENT_LAYOUT_VISIT__ROUND_ROBIN) ||
(layout_visit_policy > PAN_FS_CLIENT_LAYOUT_VISIT__ROUND_ROBIN_WITH_HASHED_OFFSET))
{
FPRINTF(stderr, "%s: panfs_layout_visit_policy is not a valid value: %u.\n", myname,
layout_visit_policy);
MPI_Abort(MPI_COMM_WORLD, 1);
}
}
/* Create the file via ioctl() or open(). ADIOI_PANFS_Open's caller
* already optimizes performance by only calling this function with
* ADIO_CREATE on rank 0. Therefore, we don't need to worry about
* implementing that optimization here. */
if ((layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAID1_5_PARITY_STRIPE) ||
(layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAID10) ||
(layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAIDN_PARITY_STRIPE)) {
pan_fs_client_layout_create_args_t file_create_args;
int fd_dir;
char *slash;
struct stat stat_buf;
int err;
char *path;
/* Check that the file does not exist before
* trying to create it. The ioctl itself should
* be able to handle this condition. Currently,
* the ioctl will return successfully if the file
* has been previously created. Filed bug 33862
* to track the problem.
*/
err = stat(fd->filename, &stat_buf);
if ((err == -1) && (errno != ENOENT)) {
FPRINTF(stderr, "%s: Unexpected I/O Error calling stat() on PanFS file: %s.\n",
myname, strerror(errno));
MPI_Abort(MPI_COMM_WORLD, 1);
} else if (err == 0) {
/* ensure that we have the same semantics here and in the call to creat(). In the latter, we do not
* use O_EXCL so a create on an existing file should not fail.
*/
FPRINTF(stderr,
"%s: Cannot create PanFS file with ioctl when file already exists, using open() syscall.\n",
myname);
goto use_open_syscall;
} else {
/* (err == -1) && (errno == ENOENT) */
/* File does not exist */
path = ADIOI_Strdup(fd->filename);
slash = strrchr(path, '/');
if (!slash)
ADIOI_Strncpy(path, ".", 2);
else {
if (slash == path)
*(path + 1) = '\0';
else
*slash = '\0';
}
/* create PanFS object */
memset(&file_create_args, 0, sizeof(pan_fs_client_layout_create_args_t));
/* open directory */
fd_dir = open(path, O_RDONLY);
if (fd_dir < 0) {
FPRINTF(stderr,
"%s: I/O Error opening parent directory to create PanFS file using ioctl: %s.\n",
myname, strerror(errno));
MPI_Abort(MPI_COMM_WORLD, 1);
} else {
char *file_name_ptr = fd->filename;
slash = strrchr(fd->filename, '/');
if (slash) {
file_name_ptr = slash + 1;
}
/* create file in the directory */
file_create_args.mode = perm;
file_create_args.version = PAN_FS_CLIENT_LAYOUT_VERSION;
file_create_args.flags = PAN_FS_CLIENT_LAYOUT_CREATE_F__NONE;
ADIOI_Strncpy(file_create_args.filename, file_name_ptr,
strlen(fd->filename) + 1);
file_create_args.layout.agg_type = layout_type;
file_create_args.layout.layout_is_valid = 1;
if (layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAIDN_PARITY_STRIPE) {
file_create_args.layout.u.raidn_parity_stripe.total_num_comps =
layout_total_num_comps;
file_create_args.layout.u.raidn_parity_stripe.parity_stripe_width =
layout_parity_stripe_width;
file_create_args.layout.u.raidn_parity_stripe.parity_stripe_depth =
layout_parity_stripe_depth;
file_create_args.layout.u.raidn_parity_stripe.stripe_unit =
layout_stripe_unit;
file_create_args.layout.u.raidn_parity_stripe.max_faults =
layout_max_faults;
file_create_args.layout.u.raidn_parity_stripe.encoding = layout_encoding;
} else if (layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAID1_5_PARITY_STRIPE) {
file_create_args.layout.u.raid1_5_parity_stripe.total_num_comps =
layout_total_num_comps;
file_create_args.layout.u.raid1_5_parity_stripe.parity_stripe_width =
layout_parity_stripe_width;
file_create_args.layout.u.raid1_5_parity_stripe.parity_stripe_depth =
layout_parity_stripe_depth;
file_create_args.layout.u.raid1_5_parity_stripe.stripe_unit =
layout_stripe_unit;
file_create_args.layout.u.raid1_5_parity_stripe.layout_visit_policy =
layout_visit_policy;
} else if (layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAID10) {
file_create_args.layout.u.raid10.total_num_comps = layout_total_num_comps;
file_create_args.layout.u.raid10.stripe_unit = layout_stripe_unit;
file_create_args.layout.u.raid10.layout_visit_policy = layout_visit_policy;
}
err = ioctl(fd_dir, PAN_FS_CLIENT_LAYOUT_CREATE_FILE, &file_create_args);
if (err < 0) {
FPRINTF(stderr,
"%s: I/O Error doing ioctl on parent directory to create PanFS file using ioctl: %s.\n",
myname, strerror(errno));
MPI_Abort(MPI_COMM_WORLD, 1);
}
err = close(fd_dir);
}
ADIOI_Free(path);
}
} else {
use_open_syscall:;
int create_fd = open(fd->filename, amode, perm);
if (create_fd != -1) {
close(create_fd);
} else {
FPRINTF(stderr, "%s: I/O Error creating PanFS file using open: %s.\n", myname,
strerror(errno));
MPI_Abort(MPI_COMM_WORLD, 1);
}
}
}
if (fd->access_mode & ADIO_RDONLY)
amode = amode | O_RDONLY;
if (fd->access_mode & ADIO_WRONLY)
amode = amode | O_WRONLY;
if (fd->access_mode & ADIO_RDWR)
amode = amode | O_RDWR;
if (fd->access_mode & ADIO_EXCL)
amode = amode | O_EXCL;
value = (char *) ADIOI_Malloc((MPI_MAX_INFO_VAL + 1) * sizeof(char));
ADIOI_Info_get(fd->info, "panfs_concurrent_write", MPI_MAX_INFO_VAL, value, &flag);
if (flag) {
unsigned long int concurrent_write = strtoul(value, NULL, 10);
if (concurrent_write == 1) {
amode = amode | O_CONCURRENT_WRITE;
}
}
ADIOI_Free(value);
fd->fd_sys = open(fd->filename, amode, perm);
fd->fd_direct = -1;
if (fd->fd_sys != -1) {
int rc;
char temp_buffer[TEMP_BUFFER_SIZE];
pan_fs_client_layout_query_args_t file_query_args;
memset(&file_query_args, 0, sizeof(pan_fs_client_layout_query_args_t));
file_query_args.version = PAN_FS_CLIENT_LAYOUT_VERSION;
rc = ioctl(fd->fd_sys, PAN_FS_CLIENT_LAYOUT_QUERY_FILE, &file_query_args);
if (rc < 0) {
/* Error - set layout type to unknown */
ADIOI_Info_set(fd->info, "panfs_layout_type", "PAN_FS_CLIENT_LAYOUT_TYPE__INVALID");
} else {
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u", file_query_args.layout.agg_type);
ADIOI_Info_set(fd->info, "panfs_layout_type", temp_buffer);
if (file_query_args.layout.layout_is_valid == 1) {
switch (file_query_args.layout.agg_type) {
case PAN_FS_CLIENT_LAYOUT_TYPE__RAIDN_PARITY_STRIPE:
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raidn_parity_stripe.stripe_unit);
ADIOI_Info_set(fd->info, "panfs_layout_stripe_unit", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raidn_parity_stripe.
parity_stripe_width);
ADIOI_Info_set(fd->info, "panfs_layout_parity_stripe_width", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raidn_parity_stripe.
parity_stripe_depth);
ADIOI_Info_set(fd->info, "panfs_layout_parity_stripe_depth", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raidn_parity_stripe.total_num_comps);
ADIOI_Info_set(fd->info, "panfs_layout_total_num_comps", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raidn_parity_stripe.max_faults);
ADIOI_Info_set(fd->info, "panfs_layout_max_faults", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raidn_parity_stripe.encoding);
ADIOI_Info_set(fd->info, "panfs_layout_encoding", temp_buffer);
break;
case PAN_FS_CLIENT_LAYOUT_TYPE__RAID1_5_PARITY_STRIPE:
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raid1_5_parity_stripe.stripe_unit);
ADIOI_Info_set(fd->info, "panfs_layout_stripe_unit", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raid1_5_parity_stripe.
parity_stripe_width);
ADIOI_Info_set(fd->info, "panfs_layout_parity_stripe_width", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raid1_5_parity_stripe.
parity_stripe_depth);
ADIOI_Info_set(fd->info, "panfs_layout_parity_stripe_depth", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.
raid1_5_parity_stripe.total_num_comps);
ADIOI_Info_set(fd->info, "panfs_layout_total_num_comps", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raid1_5_parity_stripe.
layout_visit_policy);
ADIOI_Info_set(fd->info, "panfs_layout_visit_policy", temp_buffer);
break;
case PAN_FS_CLIENT_LAYOUT_TYPE__RAID10:
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raid10.stripe_unit);
ADIOI_Info_set(fd->info, "panfs_layout_stripe_unit", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raid10.total_num_comps);
ADIOI_Info_set(fd->info, "panfs_layout_total_num_comps", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raid10.layout_visit_policy);
ADIOI_Info_set(fd->info, "panfs_layout_visit_policy", temp_buffer);
break;
case PAN_FS_CLIENT_LAYOUT_TYPE__INVALID:
case PAN_FS_CLIENT_LAYOUT_TYPE__DEFAULT:
MPI_Info_set(fd->info, "panfs_layout_type",
"PAN_FS_CLIENT_LAYOUT_TYPE__INVALID");
default:
break;
}
}
}
}
if ((fd->fd_sys != -1) && (fd->access_mode & ADIO_APPEND))
fd->fp_ind = fd->fp_sys_posn = lseek(fd->fd_sys, 0, SEEK_END);
if (fd->fd_sys == -1) {
*error_code = ADIOI_Err_create_code(myname, fd->filename, errno);
} else
*error_code = MPI_SUCCESS;
}
|
