blob: 266abca7be0bdfd75c12c3fa96e9a65d1b882a9b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
/*************************************************************************
* Copyright (c) 2016-2019, NVIDIA CORPORATION. All rights reserved.
*
* See LICENSE.txt for license information
************************************************************************/
#ifndef NCCL_UTILS_H_
#define NCCL_UTILS_H_
#include "nccl.h"
#include <stdint.h>
int ncclCudaCompCap();
// PCI Bus ID <-> int64 conversion functions
ncclResult_t int64ToBusId(int64_t id, char* busId);
ncclResult_t busIdToInt64(char* busId, int64_t* id);
ncclResult_t getBusId(int cudaDev, int64_t *busId);
ncclResult_t getHostName(char* hostname, int maxlen, const char delim);
uint64_t getHash(const char* string, int n);
uint64_t getHostHash();
uint64_t getPidHash();
struct netIf {
char prefix[64];
int port;
};
int parseStringList(const char* string, struct netIf* ifList, int maxList);
bool matchIfList(const char* string, int port, struct netIf* ifList, int listSize, bool matchExact);
static long log2i(long n) {
long l = 0;
while (n>>=1) l++;
return l;
}
#endif
|
