mpichecker.cpp
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// RUN: %clang_analyze_cc1 -analyzer-checker=optin.mpi.MPI-Checker -verify %s
#include "MPIMock.h"
void matchedWait1() {
int rank = 0;
double buf = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
if (rank >= 0) {
MPI_Request sendReq1, recvReq1;
MPI_Isend(&buf, 1, MPI_DOUBLE, rank + 1, 0, MPI_COMM_WORLD, &sendReq1);
MPI_Irecv(&buf, 1, MPI_DOUBLE, rank - 1, 0, MPI_COMM_WORLD, &recvReq1);
MPI_Wait(&sendReq1, MPI_STATUS_IGNORE);
MPI_Wait(&recvReq1, MPI_STATUS_IGNORE);
}
} // no error
void matchedWait2() {
int rank = 0;
double buf = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
if (rank >= 0) {
MPI_Request sendReq1, recvReq1;
MPI_Isend(&buf, 1, MPI_DOUBLE, rank + 1, 0, MPI_COMM_WORLD, &sendReq1);
MPI_Irecv(&buf, 1, MPI_DOUBLE, rank - 1, 0, MPI_COMM_WORLD, &recvReq1);
MPI_Wait(&sendReq1, MPI_STATUS_IGNORE);
MPI_Wait(&recvReq1, MPI_STATUS_IGNORE);
}
} // no error
void matchedWait3() {
int rank = 0;
double buf = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
if (rank >= 0) {
MPI_Request sendReq1, recvReq1;
MPI_Isend(&buf, 1, MPI_DOUBLE, rank + 1, 0, MPI_COMM_WORLD, &sendReq1);
MPI_Irecv(&buf, 1, MPI_DOUBLE, rank - 1, 0, MPI_COMM_WORLD, &recvReq1);
if (rank > 1000) {
MPI_Wait(&sendReq1, MPI_STATUS_IGNORE);
MPI_Wait(&recvReq1, MPI_STATUS_IGNORE);
} else {
MPI_Wait(&sendReq1, MPI_STATUS_IGNORE);
MPI_Wait(&recvReq1, MPI_STATUS_IGNORE);
}
}
} // no error
void missingWait1() { // Check missing wait for dead region.
double buf = 0;
MPI_Request sendReq1;
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD, &sendReq1);
} // expected-warning{{Request 'sendReq1' has no matching wait.}}
void missingWait2() {
int rank = 0;
double buf = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
if (rank == 0) {
} else {
MPI_Request sendReq1, recvReq1;
MPI_Isend(&buf, 1, MPI_DOUBLE, rank + 1, 0, MPI_COMM_WORLD, &sendReq1);
MPI_Irecv(&buf, 1, MPI_DOUBLE, rank - 1, 0, MPI_COMM_WORLD, &recvReq1); // expected-warning{{Request 'sendReq1' has no matching wait.}}
MPI_Wait(&recvReq1, MPI_STATUS_IGNORE);
}
}
void doubleNonblocking() {
int rank = 0;
double buf = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
if (rank == 1) {
} else {
MPI_Request sendReq1;
MPI_Isend(&buf, 1, MPI_DOUBLE, rank + 1, 0, MPI_COMM_WORLD, &sendReq1);
MPI_Irecv(&buf, 1, MPI_DOUBLE, rank - 1, 0, MPI_COMM_WORLD, &sendReq1); // expected-warning{{Double nonblocking on request 'sendReq1'.}}
MPI_Wait(&sendReq1, MPI_STATUS_IGNORE);
}
}
void doubleNonblocking2() {
int rank = 0;
double buf = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Request req;
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD, &req);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD, &req); // expected-warning{{Double nonblocking on request 'req'.}}
MPI_Wait(&req, MPI_STATUS_IGNORE);
}
void doubleNonblocking3() {
typedef struct { MPI_Request req; } ReqStruct;
ReqStruct rs;
int rank = 0;
double buf = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD, &rs.req);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD, &rs.req); // expected-warning{{Double nonblocking on request 'rs.req'.}}
MPI_Wait(&rs.req, MPI_STATUS_IGNORE);
}
void doubleNonblocking4() {
int rank = 0;
double buf = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Request req;
for (int i = 0; i < 2; ++i) {
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD, &req); // expected-warning{{Double nonblocking on request 'req'.}}
}
MPI_Wait(&req, MPI_STATUS_IGNORE);
}
void tripleNonblocking() {
double buf = 0;
MPI_Request sendReq;
MPI_Isend(&buf, 1, MPI_DOUBLE, 0, 0, MPI_COMM_WORLD, &sendReq);
MPI_Irecv(&buf, 1, MPI_DOUBLE, 0, 0, MPI_COMM_WORLD, &sendReq); // expected-warning{{Double nonblocking on request 'sendReq'.}}
MPI_Isend(&buf, 1, MPI_DOUBLE, 0, 0, MPI_COMM_WORLD, &sendReq); // expected-warning{{Double nonblocking on request 'sendReq'.}}
MPI_Wait(&sendReq, MPI_STATUS_IGNORE);
}
void missingNonBlocking() {
int rank = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Request sendReq1[10][10][10];
MPI_Wait(&sendReq1[1][7][9], MPI_STATUS_IGNORE); // expected-warning{{Request 'sendReq1[1][7][9]' has no matching nonblocking call.}}
}
void missingNonBlocking2() {
int rank = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
typedef struct { MPI_Request req[2][2]; } ReqStruct;
ReqStruct rs;
MPI_Request *r = &rs.req[0][1];
MPI_Wait(r, MPI_STATUS_IGNORE); // expected-warning{{Request 'rs.req[0][1]' has no matching nonblocking call.}}
}
void missingNonBlocking3() {
int rank = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Request sendReq;
MPI_Wait(&sendReq, MPI_STATUS_IGNORE); // expected-warning{{Request 'sendReq' has no matching nonblocking call.}}
}
void missingNonBlockingMultiple() {
int rank = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Request sendReq[4];
for (int i = 0; i < 4; ++i) {
MPI_Wait(&sendReq[i], MPI_STATUS_IGNORE); // expected-warning-re 1+{{Request {{.*}} has no matching nonblocking call.}}
}
}
void missingNonBlockingWaitall() {
int rank = 0;
double buf = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Request req[4];
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&req[0]);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&req[1]);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&req[3]);
MPI_Waitall(4, req, MPI_STATUSES_IGNORE); // expected-warning{{Request 'req[2]' has no matching nonblocking call.}}
}
void missingNonBlockingWaitall2() {
int rank = 0;
double buf = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Request req[4];
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&req[0]);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&req[3]);
MPI_Waitall(4, req, MPI_STATUSES_IGNORE); // expected-warning-re 2{{Request '{{(.*)[[1-2]](.*)}}' has no matching nonblocking call.}}
}
void missingNonBlockingWaitall3() {
int rank = 0;
double buf = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Request req[4];
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&req[0]);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&req[2]);
MPI_Waitall(4, req, MPI_STATUSES_IGNORE); // expected-warning-re 2{{Request '{{(.*)[[1,3]](.*)}}' has no matching nonblocking call.}}
}
void missingNonBlockingWaitall4() {
int rank = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Request req[4];
MPI_Waitall(4, req, MPI_STATUSES_IGNORE); // expected-warning-re 4{{Request '{{(.*)[[0-3]](.*)}}' has no matching nonblocking call.}}
}
void noDoubleRequestUsage() {
typedef struct {
MPI_Request req;
MPI_Request req2;
} ReqStruct;
ReqStruct rs;
int rank = 0;
double buf = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&rs.req);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&rs.req2);
MPI_Wait(&rs.req, MPI_STATUS_IGNORE);
MPI_Wait(&rs.req2, MPI_STATUS_IGNORE);
} // no error
void noDoubleRequestUsage2() {
typedef struct {
MPI_Request req[2];
MPI_Request req2;
} ReqStruct;
ReqStruct rs;
int rank = 0;
double buf = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&rs.req[0]);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&rs.req[1]);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&rs.req2);
MPI_Wait(&rs.req[0], MPI_STATUS_IGNORE);
MPI_Wait(&rs.req[1], MPI_STATUS_IGNORE);
MPI_Wait(&rs.req2, MPI_STATUS_IGNORE);
} // no error
void nestedRequest() {
typedef struct {
MPI_Request req[2];
MPI_Request req2;
} ReqStruct;
ReqStruct rs;
int rank = 0;
double buf = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&rs.req[0]);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&rs.req[1]);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&rs.req2);
MPI_Waitall(2, rs.req, MPI_STATUSES_IGNORE);
MPI_Wait(&rs.req2, MPI_STATUS_IGNORE);
} // no error
void singleRequestInWaitall() {
MPI_Request r;
int rank = 0;
double buf = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&r);
MPI_Waitall(1, &r, MPI_STATUSES_IGNORE);
} // no error
void multiRequestUsage() {
double buf = 0;
MPI_Request req;
MPI_Isend(&buf, 1, MPI_DOUBLE, 1, 0, MPI_COMM_WORLD, &req);
MPI_Wait(&req, MPI_STATUS_IGNORE);
MPI_Irecv(&buf, 1, MPI_DOUBLE, 1, 0, MPI_COMM_WORLD, &req);
MPI_Wait(&req, MPI_STATUS_IGNORE);
} // no error
void multiRequestUsage2() {
double buf = 0;
MPI_Request req;
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&req);
MPI_Wait(&req, MPI_STATUS_IGNORE);
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&req);
MPI_Wait(&req, MPI_STATUS_IGNORE);
} // no error
// wrapper function
void callNonblocking(MPI_Request *req) {
double buf = 0;
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
req);
}
// wrapper function
void callWait(MPI_Request *req) {
MPI_Wait(req, MPI_STATUS_IGNORE);
}
// Call nonblocking, wait wrapper functions.
void callWrapperFunctions() {
MPI_Request req;
callNonblocking(&req);
callWait(&req);
} // no error
void externFunctions1() {
double buf = 0;
MPI_Request req;
MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD,
&req);
void callWaitExtern(MPI_Request *req);
callWaitExtern(&req);
} // expected-warning{{Request 'req' has no matching wait.}}
void externFunctions2() {
MPI_Request req;
void callNonblockingExtern(MPI_Request *req);
callNonblockingExtern(&req);
}