Wenkai Du
43 строки
1.1 KiB
C
43 строки
1.1 KiB
C
/*************************************************************************
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* Copyright (c) 2016-2020, NVIDIA CORPORATION. All rights reserved.
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*
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* See LICENSE.txt for license information
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************************************************************************/
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#ifndef NCCL_UTILS_H_
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#define NCCL_UTILS_H_
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#include "nccl.h"
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#include <stdint.h>
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int ncclCudaCompCap();
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// PCI Bus ID <-> int64 conversion functions
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ncclResult_t int64ToBusId(int64_t id, char* busId);
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ncclResult_t busIdToInt64(const char* busId, int64_t* id);
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ncclResult_t getBusId(int cudaDev, int64_t *busId);
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ncclResult_t getHostName(char* hostname, int maxlen, const char delim);
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uint64_t getHash(const char* string, int n);
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uint64_t getHostHash();
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uint64_t getPidHash();
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struct netIf {
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char prefix[64];
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int port;
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};
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int parseStringList(const char* string, struct netIf* ifList, int maxList);
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bool matchIfList(const char* string, int port, struct netIf* ifList, int listSize, bool matchExact);
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static long log2i(long n) {
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long l = 0;
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while (n>>=1) l++;
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return l;
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}
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int busIdToCudaDev(int64_t busId);
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#endif
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