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Add error checking for weight file loading #1

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Add error checking for weight file loading #1

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30 changes: 24 additions & 6 deletions src/main.cu
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Original file line number Diff line number Diff line change
Expand Up @@ -57,12 +57,31 @@ int main(int argc, char* argv[]) {
model.b2 = (float*)malloc(out_features * sizeof(float));

FILE* f = fopen(weights_file, "rb");
fread(model.w1, sizeof(float), in_features*hidden_features, f);
fread(model.b1, sizeof(float), hidden_features, f);
fread(model.w2, sizeof(float), hidden_features*out_features, f);
fread(model.b2, sizeof(float), out_features, f);
if (!f) {
fprintf(stderr, "Error: Could not open weights file: %s\n", weights_file);
return 1;
}
if (fread(model.w1, sizeof(float), in_features*hidden_features, f) != in_features*hidden_features) {
fprintf(stderr, "Error: Incomplete read of w1\n");
fclose(f);
return 1;
}
if (fread(model.b1, sizeof(float), hidden_features, f) != hidden_features) {
fprintf(stderr, "Error: Incomplete read of b1\n");
fclose(f);
return 1;
}
if (fread(model.w2, sizeof(float), hidden_features*out_features, f) != hidden_features*out_features) {
fprintf(stderr, "Error: Incomplete read of w2\n");
fclose(f);
return 1;
}
if (fread(model.b2, sizeof(float), out_features, f) != out_features) {
fprintf(stderr, "Error: Incomplete read of b2\n");
fclose(f);
return 1;
}
fclose(f);

// ---------------- Allocate GPU weights ----------------
float *d_input, *d_output;
float *d_w1, *d_b1, *d_w2, *d_b2;
Expand Down Expand Up @@ -101,7 +120,6 @@ int main(int argc, char* argv[]) {
for (int i = 0; i < 5; i++) {
forward_tiled(model, d_input, d_hidden, d_output, B, tileB, in_features, out_features);
}
;
cudaDeviceSynchronize();

// ---------------- Timing ----------------
Expand Down